new random initial positions feature that respects the boundaries and tries to respect the min spacing

animations now possible

added test-file to optimization recording testing and tests to the utility module

new random initial positions feature that respects the boundaries and tries to respect the min spacing

new random initial positions feature that respects the boundaries and tries to respect the min spacing

record optimization by setting: record = True
chose directory of recording by setting: case_recorder_dir = [your dir]
resume optimization by setting: rerun_case_id = [your case_id] or 'latest' for resuming most recent run

This reverts commit 089b9a02.