Add support to load script engines not based on a file
Add console to menu
Add custom evaluation of commands in ScriptEngine
Add JSConsole
Merge branch 'master' of git://github.com/highfidelity/hifi into 19648

Conflicts:
	interface/src/Application.cpp
	interface/src/Application.h
Add console.ui interface file
Update showConsole -> toggleConsole and change shortcut
Update JSConsole to QWidget
Update console style
Update console style
Update JSConsole colors
Add console to script editor
Add 'f' to end of const float to follow coding standard
Merge pull request #2939 from huffman/19648

Code Review for Job #19648