Revert "SGUFoundationIOS"

This reverts commit 5bb09365513b96cd7e663e8e5471e2b43673ad43.
Revert "Revert "SGUFoundationIOS""

This reverts commit 268315ea268666bc3161aa73d30c6ec11ca05d01.
Contrary to last commit message, SGUFoundationIOS was not removed, only SGUFoundationIOSTests and related target were deleted.

SGUArrayKit
	- [ Fix ] -clampFromMin:toMax:withRange:  so min and max can be equal, essentially allowing clamping to one value.

	SGUArrayComplexFloat
	- [ Fix ] minValue and maxValue were returning wrong values
	- [ Change ] complexSetRealInRange:toArray:fromIndex:  and imaginary counterpart to take SGUArray and not just SGUArrayFloat.