Increase testing coverage

[Xkonti]

Please feel free to pick any of the not-implemented operation and add tests - even if not coplete.

Problem

All operations should be covered by tests to enforce that the library is correct at all times.

The challenge in thoroughly testing the library lays in the sheer amount of possible variants of each operation:

• Each operation has 4 variants depending on vector type (V2F, V3F, V2I, V3I)
• Some operations might have additional variants in form of Comp
• Some operations might have additional variants in form of InPlace
• Some operations might have additional variants in form of CompInPlace
• Each of the 4 variants represents a range of allowed types:
  • V2F and V3F allow for float32 and float64 turning it from 2 to 4 permutations
  • V2I and V3I allow for int, int8, int16, int32 and int64 turning it from 2 to 10 permutations

An operation like Add could be considered to have a high number of variants:

• Add, AddComp, AddInPlace, AddCompInPlace = 4 variants
• V2F and V3F introduce 4 variants of each = 4*4 = 16variants
• V2I and V3I introduce 10 more variants of each = 4*10 = 40variants

That produces 16+40=56 variants of Add to run multiple tests on!

Current status

Checkmark	Name of the function	Status
✖️	Abs	Partial ( #37 )
✖️	Add	Only basic for V2F and V2I implemented
✖️	AddScalar	NONE
✖️	AngleBetweenDeg	NONE
✖️	AngleBetweenRad	NONE
✖️	Apply	NONE
✖️	Array	NONE
✖️	Ceil	NONE
✖️	ClampComp	NONE
✖️	ClampLen	NONE
✖️	Cross	NONE
✖️	Discard	NONE
✖️	Distance	NONE
✖️	Div	NONE
✖️	DivScalar	NONE
✖️	Dot	NONE
✖️	Extend	NONE
✖️	Floor	NONE
✖️	Insert	NONE
✖️	Inv	NONE
✖️	IsZero	NONE
✖️	Len	NONE
✖️	LenSqrt	NONE
✖️	Math	NONE
✔️	Max	Implemented
✔️	Min	Implemented
✖️	Mod	NONE
✖️	ModScalar	NONE
✖️	Mul	NONE
✖️	MulScalar	NONE
✖️	Neg	NONE
✖️	New	NONE
✖️	Norm	NONE
✖️	Pow	NONE
✖️	Pow2	NONE
✖️	Pow3	NONE
✖️	PowN	NONE
✖️	PowNFloat	NONE
✖️	Round	NONE
✖️	Slice	NONE
✖️	Split	NONE
✖️	Sqrt	NONE
✖️	Sub	NONE
✖️	SubScalar	NONE
✖️	Swizzle	NONE