Add initial cake script

[mikkelbu]

In order to get the initial script working I've temporarily commented
out the VSIX project from the solution file and commented out the nuget
task from nunit.analyzers.csproj.

Relates to #17.

[jnm2]

Oh, I remember what I'm doing to work around it. In the Release Solution configuration, I uncheck the VSIX project under the 'build' column. In the other solution configuration I leave it checked so that F5 debugging works. Kind of a hack. 😝

[mikkelbu]

@jnm2 Did you change your comment (at least I got 2 emails with different content)?

I think that I ran in to the 32-bit vs 64-bit msbuild and the VSIX project issue. I cannot remember the error message, but a search sent me to this page Unable to compile VSIX project that is a part of my solution using amd64 MSBuild from VS2015 and as a quick and dirty solution I just commented out the VSIX part.

[jnm2]

Yes, I realized the Cake snippet I posted first wasn't relevant because I didn't use it for debug builds. If the only issue is the msbuild process bitness, I remember using .SetMSBuildPlatform(MSBuildPlatform.x86) to solve that.