Using get_pins to workaround q/Q in RC/ETS/etc.
Added global env
 env is made globally in the extract_check_* proc
Aligned properly again the displayed_message text
Fix the head/tail help display
Moved logos
Debugging output for entering and exiting procedures
help_head/tail vares moved before the option extraction takes place

The additional help was not shown due to help_head/tail being defined
after the arguments extraction took place
read CTL files procedure was made obsolete

It appears that RC 12.1 is able to put CTL for modules directly, thus
making our procedure obsolete.
Added a clear warning about this.

Also added --instance option as a hack...
FIndFiles commented procedure added
Initialize timing_modes variable
Better handling of shift/capture in define_dft_test_signals

Do noty give a warning unless the values are different in shift and
capture. Also check that a high/low is already set not something else.
conflict.

Skipping user defined signal was faulty due to a missing continue
statement.
Added report_power_over_area procedure