Remove hardcoded condor/ directory in processing scripts

[lnestor]

I do not know why this codebase requires everything to exist in a condor/ directory, and this PR is to get rid of that. This is very prevalent in our codebase, so I am setting this as a draft until it is complete.

I think it will be impossible to get everything working 100%, mostly because I don't even know if the run 2 files exist anymore (I've looked for them). We can definitely implement this with the scripts we are running for run 3. Because of that, I see a few ways forward:

• Make the change and say screw it to all the old scripts that require the condor directory. Basically we don't worry about getting, say, bkgdEstimation_2016.py to work. I like this idea, because it allows us to rip out the bad code that has been written, but obviously it means stuff will be broken. However, I doubt any run 2 script actually works anymore, and we have a run 2 tag made.
• (Current) Add deprecation notices to the old functions and fallback to the new functions.

TODO List:

• Change the callers of these getHist functions to use filepaths
• Get rid of getYield, getIntegral, etc. because they aren't really useful