Update libtomcrypt to https://github.com/libtom/libtomcrypt/commit/de15a6fad94a1…
…d6d05a197bd409adbec084fac2b.
This is mainly with focus on issues with the ECC code. One of these issues is a "possible overflow in ecc_ansi_x963_export" (https://github.com/libtom/libtomcrypt/issues/58). Other than that all changes are minimal, only one new compile flag had to be added to get around a compiler incompatibility case for LTC_FAST (we're not working with GNU compilers here) and the code will fully compile.
This is mainly with focus on issues with the ECC code. One of these issues is a "possible overflow in ecc_ansi_x963_export" (https://github.com/libtom/libtomcrypt/issues/58). Other than that all changes are minimal, only one new compile flag had to be added to get around a compiler incompatibility case for LTC_FAST (we're not working with GNU compilers here) and the code will fully compile.
- /wd4100 since "unused formal parameter" is not a critical error
- _SCL_SECURE_NO_WARNINGS as unfortunately protoc's generated code still relies on potentially unsafe methods
- Added custom rules for *.proto files to iw4x
- Added a workaround for protoc output not being automatically included
- Disable precompiled headers for protobuf generated sources
- Moved inclusion of node.pb.h out of STDInclude.hpp to only where it's necessary (WTF @momo5502)
- Removed protobuf-generated code from "protobuf" external project
- Removed protogen.bat as it is no longer needed
