Added NPC shield bar (it doesn't do anything yet, since the only enemy is Celise, who doesn't have a sheild, but still).
Also, some rework in the GUI to make the setup and teardown of the sidebars cleaner.
Also, the NPC sidebar spacing is determined programatically now, so the spacing should be easier to adjust or tweak.
Merge branch 'master' of github.com:Fenoxo/sourceTiTS