Add themeblvd_header and themeblvd_footer actions hooks

[themeblvd]

These will encompass the entire header and footer.

The function themeblvd_header_default() hooked to themeblvd_header will:

• do_action( 'themeblvd_header_before' );
• IF header is displaying on current page:
  • <div id="top">
  • Include content-header.php template part.
  • </div><!-- #top -->
• do_action( 'themeblvd_header_after' );

The function themeblvd_footer_default() hooked to themeblvd_footer will:

• do_action( 'themeblvd_footer_before' );
• IF footer is displaying on current page:
  • IF is a custom layout:
    • <div id="custom-bottom">
    • do_action( 'themeblvd_builder_content', 'footer' );
    • </div><!-- #custom-bottom -->
  • ELSE:
    • <div id="bottom">
    • Include content-footer.php template part.
    • </div><!-- #bottom -->
• do_action( 'themeblvd_footer_after' );