Fix Patcher referencing /bin/Debug explicitly

[bartico6]

Oversight from my previous PR. Sincere apologies for missing it while testing.

The patcher now outputs the configuration name to env.config pre-build, and then reads it at runtime to determine which folder the modifications should be searched for inside of. This one was tested and works correctly.
There will be a TShock submodule update right after this is merged, so please accept that as well 👍

[bartico6]

I think that this is now safe to merge - the only time the changes kick in is when there are no cmdline arguments, and then it must've been compiled through msbuild or VS so env.config will always exist. I genuinely doubt there's any further issues to run into. Please let me know when and if this is merged, as, again, I will have to update TShock with a PR as well.

[QuiCM]

Is this tested on Mono & Windows?

[bartico6]

I assume the AppVeyor builds/execs run on mono and it is tested on Windows on my local machine

[hakusaro]

I assume the AppVeyor builds/execs run on mono

Bad assumption. AppVeyor builds on Windows machines. Travis builds on Linux/Mono.

[bartico6]

Then it is not tested on Mono and it wont be in the next few hours as it is 5:25AM for me. I'll do it tomorrow.

[hakusaro]

The toolchains should be close to the same now that .NET core is a thing, but they're not at that point yet.

[bartico6]

quake@ubuntu-vm-quake:~/git/TerrariaAPI-Server-1/TShock.Modifications.Bootstrapper/bin/Release$ mono TShock.Modifications.Bootstrapper.exe
TShock Mintaka Bootstrapper, Open Terraria API v2.0
Folder set to: Release
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
Patching OTAPI, Version=1.3.5.3, Culture=neutral, PublicKeyToken=null.
Running 4 modifications.
 -> Adding RemoteClient.ClientUUID...
 -> Adding ItemID.Sets.Explosives...
 -> Enforcing OTAPI to load right platform...
 -> Adding server side character support...
Saving modifications for merge...
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
Packing source and modification assemblies.
INFO: IL Repack - Version 2.0.13
INFO: ------------- IL Repack Arguments -------------
/out:/tmp/tmp29fc3482.tmp.dll  /tmp/tmp2be46229.tmp.dll /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.ClientUUID/bin/Release/TShock.Modifications.ClientUUID.dll /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.Explosives/bin/Release/TShock.Modifications.Explosives.dll /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.Platform/bin/Release/TShock.Modifications.Platform.dll /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.SSC/bin/Release/TShock.Modifications.SSC.dll
-----------------------------------------------
INFO: Adding assembly for merge: /tmp/tmp2be46229.tmp.dll
INFO: Adding assembly for merge: /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.ClientUUID/bin/Release/TShock.Modifications.ClientUUID.dll
INFO: Adding assembly for merge: /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.Explosives/bin/Release/TShock.Modifications.Explosives.dll
INFO: Adding assembly for merge: /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.Platform/bin/Release/TShock.Modifications.Platform.dll
INFO: Adding assembly for merge: /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.SSC/bin/Release/TShock.Modifications.SSC.dll
INFO: Processing references
INFO: Processing types
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Processing exported types
INFO: Processing resources
WARN: [System.Runtime.CompilerServices.CompilationRelaxationsAttribute] attribute wasn't merged because of inconsistency across merged assemblies
INFO: Fixing references
WARN: Did not write source server data to output assembly. Source server data is only writeable on Windows
INFO: Writing output assembly to disk
INFO: Copying permissions from /tmp/tmp2be46229.tmp.dll
INFO: Finished in 00:00:08.4652573
Cleaning up assembly.
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
 * NuGet resolution failed on Newtonsoft.Json
 * Found Newtonsoft.Json locally
Patching complete. Output: /home/quake/git/TerrariaAPI-Server-1/TShock.Modifications.Bootstrapper/bin/Release/Output/OTAPI.dll
quake@ubuntu-vm-quake:~/git/TerrariaAPI-Server-1/TShock.Modifications.Bootstrapper/bin/Release$

built & run successfully on mono + xbuild. I think it can be merged now.
The failures with nuget were because I in fact did not have nuget 2.12 installed and I manually used the .exe to restore packages. The patching and detection of config work fine, though.