Build correct FSharp.Core version number

Author: KevinRansom

eng/Versions.props

@@ -14,7 +14,7 @@
     <PreReleaseVersionLabel>beta</PreReleaseVersionLabel>
     <FSLanguageVersion>4.7</FSLanguageVersion>
     <FSCoreMajorVersion>$(FSLanguageVersion)</FSCoreMajorVersion>
-    <FSCorePackageVersion>$(FSCoreMajorVersion).3</FSCorePackageVersion>
+    <FSCorePackageVersion>$(FSCoreMajorVersion).0</FSCorePackageVersion>
     <FSCoreVersionPrefix>$(FSCoreMajorVersion).0</FSCoreVersionPrefix>
     <FSCoreVersion>$(FSCoreVersionPrefix).0</FSCoreVersion>
     <!-- The current published nuget package -->