Added a skeleton class for the select box filter

issue: #1148
Added dummy UI XML

issue: #1148
Added the CSS file and fixed some unused imports in another class
The CSS is just a temporary version. This WILL change

issue: #1148
Updated the component functions

issue: #1148
Updated some functions for the drop box filter component

issue: #1148
Updated some naming and CS

issue: #1148
Merge remote-tracking branch 'upstream/master' into filterSelectBoxComponent
Added final logic. Code works. only standards needed

issue: #1148
Updated the final coding standards and logic additions

issue: #1148
Updated CS as per request

issue: #1148
Merge pull request #142 from michaelbarnard/filterSelectBoxComponent

Filter select box component