[Bitwise Mutation]: Changed to real-value generator
[Bitwise Mutation]: Changed to real-value generator

Changed the bitwise mutation operator to use a real-value RNG, rather than
the int-value RNG.

Signed-off-by: Sebastian Lenartowicz <82628b08c690d7b843f293282c58895740bc10b7@uoguelph.ca>

NGTOne/libHierGA