pascal p5c Code

clib changes;
- remove random library function
it's not guaranteed to be present in all standard c libraries, likely similar to rand() where it exists
in clib it returns a real value between 0 & 1
- new tests in tclib.pas

in build scripts use older syntax for mktemp()
- new syntax maight not be present on some systems

minor mods to test files so compares work on different systems

string.inc.pas:
- strCompare now implemented in pascal
- the c code didn't compile on mingw