Locate and position the current Audacity source code, and clear a variety of old junk out of the way into junk-branches

win/Projects/locale/po.rules

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+<?xml version="1.0" encoding="utf-8"?>
+<VisualStudioToolFile
+	Name="Message Compiler"
+	Version="8.00"
+	>
+	<Rules>
+		<CustomBuildRule
+			Name="msgfmt"
+			DisplayName="Compile Locale"
+			CommandLine="msgfmt [AllOptions] [AdditionalOptions] [inputs]"
+			Outputs="[$OutputName]"
+			FileExtensions="*.po"
+			ExecutionDescription="Compiling $(InputName) locale"
+			>
+			<Properties>
+				<StringProperty
+					Name="OutputName"
+					DisplayName="Output File"
+					Description="Specifies a name to override the default file name"
+					Switch="-o &quot;[value]&quot;"
+					DefaultValue="$(OutDir)\Languages\$(InputName)\Audacity.mo"
+					Delimited="true"
+				/>
+				<BooleanProperty
+					Name="Verbose"
+					DisplayName="Verbose"
+					Description="Increase verbosity level"
+					Switch="-v"
+				/>
+			</Properties>
+		</CustomBuildRule>
+	</Rules>
+</VisualStudioToolFile>