Dependency on FAKE version

[mglodack]

Looks like we might need to depend on a specific FAKE version.

Current project is on:
4.14.2

And this is the exception I am getting.

System.MissingMethodException: Method not found: 'Microsoft.FSharp.Core.FSharpOption`1<System.String> Fake.AssemblyInfoFile.GetAttributeValue(System.String, System.String)'.
   at datNET.Targets._readVersionString(String filePath)
   at datNET.Targets.VersionTargets.create@184-1.Invoke(String path)
   at Microsoft.FSharp.Collections.SeqModule.Iterate[T](FSharpFunc`2 action, IEnumerable`1 source)
   at datNET.Targets.VersionTargets.create@182.Invoke(ConfigParams p)
   at Fake.TargetHelper.runSingleTarget(TargetTemplate`1 target) in C:\code\fake\src\app\FakeLib\TargetHelper.fs:line 483

I bumped my local FAKE version to 4.37.2 and that seemed to fix the issue.

[awseward]

Ah, yeah that function was probably introduced somewhere between 4.14.2 and 4.37.2.

We'll definitely need a minimum version requirement then.

Might as well make it whatever the latest is now, yeah?

[mglodack]

@awseward That is a great idea