Beautifying test collateral.
Renamed inspect().get_effective_indicator().

The new name is inspect().get_effective().

CHANGE: should be noted in the 2.14 change log.
Beautifying agenttools test collateral.
Renamed scoretools.make_measures_with_full_measure_spacer_skips().

The new name is scoretools.make_spacer_skip_measures().
Beautified agenttools test collateral.
Removed redundant instrumenttools test files.
Beautified indicatortools test collateral.
Harmonized test file names with recent changes.
Updated labeltools test files.