Added method Tie_Point_Grid.calc_overall_stats() + tests to compute overall...

Added method Tie_Point_Grid.calc_overall_stats() + tests to compute overall statistics from all tie points found.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
5 jobs for v1.7.0 in 4 minutes and 53 seconds (queued for 15 minutes and 25 seconds)
latest
Status Name Job ID Coverage
  Test
passed test_arosics #95205

00:02:33

85.0%
passed test_styles #95206

00:00:20

passed test_urls #95207

00:01:08

 
  Deploy
passed create_github_release #95209

00:00:23

passed deploy_pypi #95208

00:00:28