SearchBar, SearchBar in TableView and updated separators for TableView

please ignore : 212e123, 942bcb9, - both was reverted by 134510f - there are no bad code(and final results are same) but it is more correctly to have 4 commits for these
fixed:
Jira ticket for the separator activity: https://jira.appcelerator.org/browse/TIMOB-8124
Jira ticket for "SearchBar (support in TableView)": https://jira.appcelerator.org/browse/TC-1680
Jira issue for "SearchBar" change: https://jira.appcelerator.org/browse/TIMOB-7231
Jira issue for "Sections+Headers" change: https://jira.appcelerator.org/browse/TC-1580