Main code cleanups

[AlemSnyder]

• [x] mesh.cpp has HORRIBLE variable names, everything is one letter. Please name more descriptively.
• [x] You should move the shaders to a resources directory at repo root
• [x] NEVER USE MALLOC. You shouldn't even use new! C++ comes with RAII in the STL that does everything for you.
• [x] USE std::string!!!!!!!
• [x] Look into #pragma once or add paths to your include guards
• [x] Do file IO with streams: https://cplusplus.com/doc/tutorial/files/
• [x] Use CMake's configure_file with CMAKE_BUILD_TYPE and if STREQUAL to load shaders from root on dev and build on prod (also see tutorial)
• [x] Format and lint code
• [x] Load shaders using relative paths from executable using whoami
• [x] VoxelUtility is really bad

[AlemSnyder]

mesh.cpp has HORRIBLE variable names, everything is one letter. Please name more descriptively. voxelutility is really I/O Utility and also duplicated in terrain.cpp

These are fixed

[AlemSnyder]

include guards are fixed

[egelja]

https://github.com/pocc/pre-commit-hooks