Merge pull request #3725 from RosettaCommons/JackMaguire/Inlining2
Continuation of #3670
@dougrenfrew measured a 5% speed increase by compiling with link-time-optimization. The main benefit of LTO is inlining simple functions defined in .cc files. I profiled Rosetta and found a handful of getter-functions that accounted for roughly 0.5% of Rosetta's runtime each. This PR moves those functions to the corresponding .hh file with the hopes of seeing a speed increase. I also moved neighboring functions if it looked like the bundle should be kept together.