Add rotate instruction

[guillep]

• from the interpreter's rotateLeft:by: -- needs https://github.com/pharo-project/pharo-vm/pull/748

This issue could be split in many substeps (where each can have tests on its own):

• [x] add a rotate instruction in druid's IR
• [x] add support to translate it with the cogit code generator -> test in DRCogitGeneratorTest (and subclasses)
• [x] add a special case for it in druid IR builder -> test in DRPrimitiveScenarioCompilationTest