Some constants are missing from rlgl

[SHAYDED]

Some of the constants in rlgl are missing.

These are the ones I've noticed so far:

// Primitive assembly draw modes
#define RL_LINES                                0x0001      // GL_LINES
#define RL_TRIANGLES                            0x0004      // GL_TRIANGLES
#define RL_QUADS                                0x0007      // GL_QUADS

// GL Shader type
#define RL_FRAGMENT_SHADER                      0x8B30      // GL_FRAGMENT_SHADER
#define RL_VERTEX_SHADER                        0x8B31      // GL_VERTEX_SHADER
#define RL_COMPUTE_SHADER                       0x91B9      // GL_COMPUTE_SHADER

[Chris Dill]

@shayded-exe Both were moved to enums. The draw modes are in DrawMode and shader types are in ShaderType.

[SHAYDED]

Ah, I missed that. Thank you!