vec2: add new function glm_vec2_make

[EasyIP2023]

Just a copy of glm_vec2, but with the
word _make suffixed at the end.

Function takes in a float array array must be
at least of size 2 and converts it into
a 2D vector.

Hey, @recp finishing off last _make calls to close off #284.

Realized for vec2 there's no point in extra function glm_vec2_make as it's already defined as
glm_vec2. Creating PR for discussion. Also do we want to create new headers for the
other matrices?

• mat2x3
• mat2x4
• mat3x2
• mat3x4
• mat4x2
• mat4x3

[recp]

@EasyIP2023 many thanks for your contributions, the PR is merged 🚀

[recp]

Realized for vec2 there's no point in extra function glm_vec2_make as it's already defined as glm_vec2

Actually it would be nice to make them homogenous as all use _make.

Maybe we should use glm_vec2, glm_vec3 and glm_vec4 for filling vector by individual items e.g.

glm_vec2(x, y, dest);
glm_vec3(x, y, z, dest);
glm_vec4(x, y, z, w, dest);

we can discuss this in separate issue to get more feedback maybe.

Also do we want to create new headers for the
other matrices?

mat2x3
mat2x4
mat3x2
mat3x4
mat4x2
mat4x3

that would be awesome, yes :)