GitLab

* Added file reload feature to widgets.

* Modify feature name 'reload' to 'refresh' and fixed ignoring button name.

* refresh widget bugfix

* crash patch for "widget" input by type mismatch

* compensate offset on showimage
* adding widget caused misaligned offset

* patch refresh feature for general method

* clean up patch and following upstream

* make more clean code for refresh feature

* move refresh button position

* robust patch for refresh feature

* patch for refreh feature
* avoid specify REFRESH_LIST for each node
* prevent updating selected value unless removed item
* update all combo list for 'required input' in node

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Co-authored-by: Lt.Dr.Data <lt.dr.data@gmail.com>