Add all assembly metadata to AssemblyVersionInformation type

[allykzam]

PR for #822 as requested by @dsyme

Replaces the Version and InformationalVersion values being generated with the AssemblyVersionInformation type with a value for every assembly attribute.

As the new values are named after their attribute type names, this is a breaking change for anyone expecting Version instead of AssemblyVersion and InformationalVersion instead of AssemblyInformationalVersion.

Likewise, the newly-named AssemblyVersion and AssemblyInformationalVersion values are no longer generated by default, and must be included in the collection of provided attributes.

[forki]

thx

[Ravadre]

Hi,

@amazingant - this PR seems to have broken generating AssemblyInfoVersion when Metadata attribute is used.

Before this PR generated code looked like this:

// <auto-generated/>
using System.Reflection;

[assembly: AssemblyMetadataAttribute("githash","cc5fd8")]
namespace System {
    internal static class AssemblyVersionInformation {
        internal const string Version = "LocalBuild";
        internal const string InformationalVersion = "LocalBuild";
    }
}

After the PR:

// <auto-generated/>
using System.Reflection;

[assembly: AssemblyMetadataAttribute("githash","cc5fd8")]
namespace System {
    internal static class AssemblyVersionInformation {
        internal const System.String AssemblyMetadata_githash = "githash","cc5fd8";
    }
}

Note, that string const has a value of "key","value" which is not valid code. Reason why this is the case seems to lie in L183:
fun x -> sprintf " internal const %s %s = %s;" x.StaticPropertyType x.StaticPropertyName x.StaticPropertyValue

x.StaticPropertyValue seems to have value that goes into attribute data, when using most attributes where value is a single string, this is OK, because the property will have value like "0.2", for Metadata though - it will contain 2 string values separated by comma.

[allykzam]

@Ravadre Sorry, forgot to supply a different StaticPropertyValue for metadata attributes. Fixed with #1399

[Ravadre]

@amazingant Hi, that's great, thanks a lot!