Merge pull request VHDL#19 from PLC2/PLC2/release

Fix: Use EndOfTestReport to close simulation

Preparation towards v1.4.0

Ported changes from 'Vivado' branch to 'master' branch for v1.3.0.

Not 100% beckward compatible (with generics)

syntax fixes

Merge branch 'master' into Vivado

Merge remote-tracking branch 'gitlab-plc2/release'

Fixed RGB LED constraints.

(cherry picked from commit a301e79)

Integration of pending enhancement from branch 'release'. Split of Po…

…C and Python Infrastructure (pyIPCMI) into 2 repositories.