libexe-20210424-bp154.2.21

- Edit specfile to do multipython builds.

- Update to snapshot 20210424 (6a3feb22)
  * No changelog was provided
- Add system-libs.patch

- update to v0~20191221
  * worked on python bindings
  * code cleanup
- convert bindings subpackage from python2 to python3
- rename from python-libexe to python3-libexe

- update to v0~20181128
  * Worked on python bindings
  * code clean up
  * Worked on dtfabric support (used by the developers, not an API issue)

- update to v0~20160110
  * worked on Python 3 support
  * 2016 update
  * applied updates
  * worked on Python bindings
  * worked on check signature
  * code clean up

- initial package v~20150105