Add a low-intensive grid option named small

@amohammadi, I think this MR is not actual any more. The classes you modified are now completely removed. Only the second part "Add a low-intensive grid option named small" of this MR can be of importance for you. Do you want to keep "small" grid configuration? If so I suggest we close this MR and add this config in another MR. Fine with you? Thanks!

No need to close this MR. I will change it, thanks.

added 40 commits

• a6d272df...710d971d - 39 commits from branch master
• 1520eaf4 - Add a low-intensive grid option named small

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changed title from Return None for frames with broken annotations to Add a low-intensive grid option named small

changed the description

enabled an automatic merge when the pipeline for 1520eaf4 succeeds

merged

mentioned in commit 1567ca3f