CONN-1189: Add JS to AdminGUI Sidebar Nav for Improved Usability

XHTML:
* acctmanagePrime.xhtml -- New color assignment to Account Tabs.
* SidebarPaneForBaseTemplatePrime.xhtml -- New color assignment to Account Menu.
* BaseTemplatePrime.xhtml -- Add link to new JS file.
* BaseTemplate.xhtml -- Add link to new JS file.

JS:
* sidebar.js -- New Javascript for CONN-1189 functionality (ref: https://connectopensource.atlassian.net/browse/CONN-1189).

CSS:
* pf-override.css -- New styles for CONN-1189 functionality (ref: https://connectopensource.atlassian.net/browse/CONN-1189).