Created in-house assert testing functions for better propagating source method/type of assertion failures

[SomeRandomiOSDev]

A large number of the tests in this project are setup in a format like follows:

func testSomeRoutine() {
    testSomeRoutine(forType: Int8.self)
    testSomeRoutine(forType: Int16.self)
    ...
    testSomeRoutine(forType: UInt8.self)
    testSomeRoutine(forType: UInt16.self)
    ...
}

Prior to this change, assertions wouldn't notate which passed type caused the test failure. Now, using the new assertion functions CTAssertTrue, CTAssertFalse, CTAssertEqual propagates the name of the method that called it as well type it compares (for CTAssertEqual) for better visibility into the function, and more specifically, the type caused a particular test failure.

[codecov-io]

Codecov Report

Merging #6 into 1.1.0 will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           1.1.0     #6     +/-   ##
======================================
  Coverage    100%   100%             
======================================
  Files          6      3      -3     
  Lines       1774    411   -1363     
======================================
- Hits        1774    411   -1363