Initial MAContainer inheritance implemented via inheritFrom() method.
Minimal tests added. Tests assume elements' order is preserved during inheritance. Probably too strict. Other option would require all elements have names or valid __eq__ implementation for MAElementDescription.
Todo: update selfDesc and respective tests.
Initial
MAContainerinheritance implemented viainheritFrom()method. Minimal tests added. Tests assume elements' order is preserved during inheritance. Probably too strict. Other option would require all elements have names or valid__eq__implementation forMAElementDescription. Todo: update selfDesc and respective tests.