FPGATrackSim HoughRootOutputTool: Add new variables, OR, making track candidates and additional configuration...

Changes to the HoughRootOutputTool (FPGATrackSim Tool to output Road/Track/Hit information e.g. for NN training):

• Adding a number of extra variables (custom volume ID information as used elsewhere, hit information for truth tracks, sorted Hough candidate hits, fakelabels for hough candidates)
• Calculate idealized coordinates for Hough candidate hits

Other changes:

• add flag writeOutNonSPStripHits for HoughRootOutputTool
• Add additional HoughRootOutput flags to FPGATrackSimAlgorithmTags
• Update call to fillTree in SecondStageAlgorithm
• Add new function library to Hough module
• Remove duplicate code for the above mentioned library in OverlapRemovalTool

@jahreda @brosser @imaznas