implement the viewport window
add locate button to viewport
add open extra viewport to map button on top toolbar
Merge branch 'master' into viewport-window

Conflicts:
	projects/openrct2.vcxproj.filters
fix the /bin issue in the install script
Merge pull request #523 from mzmiric5/master

fix the /bin issue in the install script
Merge pull request #520 from IntelOrca/viewport-window

Viewport window
resolves #522, updates readme to reflect new SDL location
Merge pull request #524 from mzmiric5/master

resolves #522, updates readme to reflect new SDL location
add missing breaks in dropdown switch for top toolbar
refactor input (flags in particular) and add sub_6EA73F
fix #525, creating a ride crashes when footpath window is open
refactor window search functions
Trying out a new technique for text input
Fix warning
New technique for text input.
Fixed bugs in existing method. Now has correct title and description
Added some of the suggested changes
Fix slight mistake with cursor position when using delete.
Added ok/cancel buttons. Added closing on main.