top: for performance, employ additional inlining

top: for performance, employ additional inlining

The 'refactor and enhance column width management'
recent redesign produced many subsequent benefits,
the latest of which is automatically sized fixed-width
non-scalable columns.

As expected, there was a cost associated with these
many enhancements.  That cost has now been identified
as a 1-4% performance degradation, depending on which
fields are being displayed.

This increased cost arises principally from current
drawing related function calls, whereas top-3.3.3 did
most of its drawing via macros effectively inlining
those duties.

This commit inlines the equivalent drawing functions,
thus eliminating the function call penalty, and places
this top on a par with top-3.3.3.  The trade off is a
modest additional 4k in executable size.

Signed-off-by: Jim Warner <james.warner@comcast.net>