Code-check.sh: Check for break after control-flow statement

[t-b]

Coding conventions suggest to avoid that 1. It's also longer than it needs to be and also makes code coverage smaller.

rg --multiline '\n[[:space:]]+(return|continue|Abort|AbortOnRTE|ASSERT).*\n[[:space:]]+break\n' Packages/MIES/*ipf

• [ ] Add to check-code.sh
• [ ] Write throw-away script for the conversion