Changes

Change debug C# version to default
 (commit: 1191841)

VS, why u do dis?
 (commit: d2fd007)

Add ImmutableStack class
 (commit: 536ff0c)

Add PatchContext struct
 (commit: abba87e)

Use ImmutableStack and PatchContext in MM
 (commit: 05342e2)

Remove unused code
Apparently had to do with texture replacer corruption, but not called 
anywhere
 (commit: 8685da9)

Implement IEnumerable<T>
 (commit: 038db23)

Add Depth property
 (commit: 946194e)

Use immutability in CheckNeeds
 (commit: 475aa66)

Forgot a using directive
 (commit: 27f788f)

Ged rid of Win64 specific code
Doesn't matter anymore
 (commit: 04df683)

Needs to be included in the project too
 (commit: 340d113)

Add logging interface
 (commit: b1a8863)

Extract progress into its own object
 (commit: ad61311)

Use logger and progress
Make some things static that no longer depend on the patch loader's 
state
 (commit: 76c998c)

Remove blocking option
It's no longer used
 (commit: 55fc4e6)

Use inline variable declaration
 (commit: bf640f4)

Make log messages consistent
 (commit: f751ed4)