Refactor, separate docs from headers, add ru docs

Doxygen kind'a sucks and I need multilanguage documentation, so I did
that. Also, separated massive Math.h file into smaller files.

include/BH/Math/Vec3f.h

@@ -0,0 +1,100 @@
+#ifndef BH_MATH_VEC3F_H
+#define BH_MATH_VEC3F_H
+
+#include "../Common.h"
+
+
+
+void BH_Vec3fAdd(const float a[3],
+                 const float b[3],
+                 float out[3]);
+
+
+
+void BH_Vec3fSub(const float a[3],
+                 const float b[3],
+                 float out[3]);
+
+
+
+void BH_Vec3fMul(const float a[3],
+                 const float b[3],
+                 float out[3]);
+
+
+
+void BH_Vec3fScale(const float a[3],
+                   float b,
+                   float out[3]);
+
+
+
+void BH_Vec3fMulAdd(const float a[3],
+                    const float b[3],
+                    const float c[3],
+                    float out[3]);
+
+
+
+void BH_Vec3fNegate(const float in[3],
+                    float out[3]);
+
+
+
+float BH_Vec3fDot(const float a[3],
+                  const float b[3]);
+
+
+
+void BH_Vec3fCross(const float a[3],
+                   const float b[3],
+                   float out[3]);
+
+
+
+float BH_Vec3fLength(const float in[3]);
+
+
+
+void BH_Vec3fNormal(const float in[3],
+                    float out[3]);
+
+
+
+float BH_Vec3fNormalEx(const float in[3],
+                       float out[3]);
+
+
+
+void BH_Vec3fMin(const float a[3],
+                 const float b[3],
+                 float out[3]);
+
+
+
+void BH_Vec3fMax(const float a[3],
+                 const float b[3],
+                 float out[3]);
+
+
+
+void BH_Vec3fLerp(const float a[3],
+                  const float b[3],
+                  float t,
+                  float out[3]);
+
+
+void BH_Vec3fProject(const float a[3],
+                     const float b[3],
+                     float out[3]);
+
+
+void BH_Vec3fBarycentric(const float a[3],
+                         const float b[3],
+                         const float c[3],
+                         float v,
+                         float w,
+                         float out[3]);
+
+
+#endif /* BH_MATH_VEC3F_H */