[Backport 1.1.x] Failing YAML export of resource with default file name containing colon, on Windows

YAML export will write resource files to file system and reference those from yaml files. 

This fails on Windows when the hippo:filename property value contains a colon, which is true for the default at /hippo:namespaces/hippo/resource/hipposysedit:prototypes/hipposysedit:prototype where hippo:filename=hippo:resource

In retrospect, the default file name here is awkward and resolution could also be to change that.

Reproduction

• On Windows, create a 12.1.0 project from archetype
• Build and run it
• From console, select above node and export it. This fails because a file named "hippo:resource" is illegal on Windows.

  INFO java.nio.file.InvalidPathException: Illegal char <:> at index 7: .\hippo:resource
  INFO    at sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:182) ~[?:1.8.0_152]
  INFO    at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153) ~[?:1.8.0_152]
  INFO    at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77) ~[?:1.8.0_152]
  INFO    at sun.nio.fs.WindowsPath.parse(WindowsPath.java:94) ~[?:1.8.0_152]
  INFO    at sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:255) ~[?:1.8.0_152]
  INFO    at sun.nio.fs.AbstractPath.resolve(AbstractPath.java:53) ~[?:1.8.0_152]
  INFO    at org.onehippo.cm.model.serializer.FileResourceOutputProvider.getResourcePath(FileResourceOutputProvider.java:64) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.FileResourceOutputProvider.getResourceOutputStream(FileResourceOutputProvider.java:57) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.ModuleContext.serializeResourceValue(ModuleContext.java:268) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.serializeResourceValue(SourceSerializer.java:381) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.processSingleResource(SourceSerializer.java:250) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representPropertyUsingMap(SourceSerializer.java:223) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representProperty(SourceSerializer.java:177) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representDefinitionNode(SourceSerializer.java:147) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representDefinitionNode(SourceSerializer.java:150) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representDefinitionNode(SourceSerializer.java:150) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representDefinitionNode(SourceSerializer.java:150) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representDefinitionNode(SourceSerializer.java:150) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representDefinitionNode(SourceSerializer.java:150) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.SourceSerializer.representContentDefinition(SourceSerializer.java:125) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.ContentSourceSerializer.representSource(ContentSourceSerializer.java:35) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.ModuleWriter.writeModule(ModuleWriter.java:71) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.model.serializer.ModuleWriter.writeModule(ModuleWriter.java:54) ~[hippo-configuration-management-model-1.0.3.jar:1.0.3]
  INFO    at org.onehippo.cm.engine.ConfigurationServiceImpl.exportZippedContent(ConfigurationServiceImpl.java:381) ~[hippo-repository-engine-5.0.4.jar:5.0.4]
  INFO    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_152]
  INFO    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_152]
  INFO    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_152]
  INFO    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_152]
  INFO    at org.onehippo.cms7.services.HippoServiceRegistry$NamedRegistration$1.invoke(HippoServiceRegistry.java:57) ~[hippo-services-4.0.3.jar:4.0.3]
  INFO    at com.sun.proxy.$Proxy50.exportZippedContent(Unknown Source) ~[?:?]
  INFO    at org.hippoecm.frontend.plugins.console.menu.content.DownloadExportYamlLink.getContent(DownloadExportYamlLink.java:67) ~[hippo-cms-console-frontend-5.0.4.jar:5.0.4]