qixinbo

Results 3 issues of qixinbo

Fix the roi manager bug that is mentioned by #150 .

Currently, there is a bug for the "Save With Mark", as is described in [this issue](https://github.com/Image-Py/imagepy/issues/92) Here the function "save_buffer" is added in the canvas class. The the issue #92...

Dear developer, From the api of SimpleResult, it is found that it contains ImpactResults and FlowResults. Does it also contain the process-related information? For example, the "Process flow contributions", "Process...