Added new math operations

[MartonioJunior]

All of these methods are based by the following GDC talk, as well as some utility methods I use on my personal projects

List of operations added:

• approx(a ,b, tolerance)
• arc(x)
• arch2(x)
• bitwave(x)
• clamp01(x)
• mix(a, b, weightB, t)
• normal(x, zero, one)
• pingpong(a, b, t)
• sine(x)
• smoothstart(t, n)
• smoothstop(t, n)
• snap(x, snap)
• triwave(x)
• xfade(a, b, t)

List of operations changed:

• movetowards(current, target, distanceDelta): Streamlined formula to always run with the same number of operations
• pingpong(x, length): Added new signatures to compose other types

[cr-gpt]

Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information

[ltmx]

All of these methods are based by the following GDC talk, as well as some utility methods I use on my personal projects

List of operations added:

• approx(a ,b, tolerance)
• arc(x)
• arch2(x)
• bitwave(x)
• clamp01(x)
• mix(a, b, weightB, t)
• normal(x, zero, one)
• pingpong(a, b, t)
• sine(x)
• smoothstart(t, n)
• smoothstop(t, n)
• snap(x, snap)
• triwave(x)
• xfade(a, b, t)

List of operations changed:

• movetowards(current, target, distanceDelta): Streamlined formula to always run with the same number of operations
• pingpong(x, length): Added new signatures to compose other types

Thank you a lot for your contribution fellow !
Feel free to do it again, I'll gladly implement your ideas ;)