LPS-39699 Update Currency Converter portlet to bootstrap & new HTML markup

Similar to https://github.com/blzaugg/liferay-portal/pull/98 but with
<aui:field-wrapper> also to add in a margin below form controls.
LPS-39699 - Source formatting
LPS-49520 Inconsistent input widths throughout Portal
LPS-49520 Adjusting date/time picker tags
LPS-49268 Remove box-shadow on portlet options cog
LPS-49268 Source Formatting
LPS-49520 SF
LPS-49267 Hide dockbar div
LPS-49267 Source Formatting
LPS-49562 Refactor ProcessExecutor to be an interface, move the current impl to LocalProcessExecutor
LPS-49562 Spring wiring
LPS-49562 Apply usage
LPS-49562 Unit test
LPS-49562 Fix unit test
LPS-49562 SF
LPS-49125 - Aligns certain checkbox labels in control panel
LPS-49125 - Source formatting
LPS-49125 - Source formatting
Record
LPS-49517 Remove left over unused code