* Move render utils to dedicated file.
* Implement more render/mesh utils.
* Added structure for OverlayTriangle_t, OverlaySweptBox_t and OverlayCapsule_t.
OverlayCapsule_t has been modified to accommodate the size in r5 (2 new vectors).
SourceSDK mathlib port with light modifications.
Renamed Vector to Vector3D (to avoid confusion with std::vector (declared as vector) and Vector2D/Vector4D).
* Added RTech::LoadShaderSet for the asset load routine
* Grabbing CShaderGlue::SetupShader and CShaderGlue::m_pVTable dynamically now
* Everything verified for every season, cross-compatible!
* CMemory::FindAllCallReferences: Get all function calls to a function from the supplied sectioBase and sectionSize, useful to mass patch calls to a function.
* Added working players/maxplayers fields for master server.
* Fixed popstylevar assert in CBrowser (SetStyleVar and the corresponding PopStyleVar where not within the same scope).
* This will crash due to the string not being allocated with alloc.
Even if the source engine would allocate it, it would use CStdMemAlloc and it would crash anyway.
But it doesn't so we can just leave that out!
Currently causes undefined behavior, though it rarely crashes (I couldn't reproduce the crash, but do get undefined behavior by having random memory end up in the input field, or similar)
Problem probably is because we don't store any undo/redo buffer.
For now disabled, will revisit in the future.
* Fixed click-through parent window.
* Keep selection position when lines get cleared.
* Keep cursor position when lines get cleared.
* Ensure cursor visibility when dragging cursor outside rect.
* Falter free scrolling in autocomplete window.
* Falter free scrolling in logging window (window no longer stutters when lines get cleared).
