Prerelease Theta v1.7.0

Added:
- comp.copy(comp)
- quat.copy(quat)
- vec2.copy(vec2)
- vec3.copy(vec3)
- vec4.copy(vec4)
- matr.copy(matr)
- matr.concat(matr_1, matr_2, type)
- tens.copy(tens)
- tens.concat(tens_1, tens_2, rank)

Removed:
- Nothing

Changed:
- stat.eq(arr, arrORnum)
- stat.ineq(arr, inf, sup, includeInf, includeSup)
- stat.lt(arr, arrORnum, includeEnd)
- stat.gt(arr, arrORnum, includeEnd)
- stat.toTensor(arr, size)
- matr.new(matrix)
- matr.resize(matr, rows, cols)
- matr.fill(element, rows, cols)
- matr.empty(rows, cols)
- matr.random(inf, sup, rows, cols)
- matr.LUdecomp(matr)
- matr.QRdecomp(matr)
- matr.toTensor(matr, size)
- tens.new(tensor)
- tens.rank(tens)
- tens.size(tens)
- tens.resize(tens)
- tens.fill(element, size)
- tens.empty(size)
- tens.random(inf, sup, size)
- tens.zero(tens)
- tens.negate(tens)
- tens.reciprocate(tens)
- tens.absolute(tens)
- tens.round(tens)
- tens.scl(tens, num)
- tens.constrain(tens, range)
- tens.add(tens_1, tens_2)
- tens.sub(tens_1, tens_2)
- tens.mul(tens_1, tens_2)
- tens.toMatrix(tens)
- tens.toArray(tens)
- tens.toObject(tens)
- tens.toString(tens, indentation)