Feature: make configurable status check on coverage drop or add a kind of "tollerance"

[kmos]

Hi,

First, thanks a lot for your work in this plugin, it's very useful for my organization even if code coverage reporting is a stressful topic.

I noticed that from version 2.1.1, is present the possibility to

Fail the status check when the coverage decreased

which is great and a fair point of discussion for the proposed code in PR but sometimes the report show something like that:

which generate a bit of confusion and some awful discussion. I think that the reported value is truncated but the status check is evaluated with the complete value. Maybe a solution could be:

• evaluate the status with the same value reported in the PR
• add the possibility to disable the commit status or configure a tollerance value in which the status check is successful or failed.

Again thanks a lot for your work!

[isokolovskii]

Agreed, such coverage changes like <1.00% are annoying
Would be great to have possibility to set some threshold in percents for which coverage change is satisfied