Fundamental changes to the architecture of component classes

All components (e.g., fields, registers, addrmaps) are now children
of a common class Component. This common class has certain common
methods such as get_ports(), get_rtl(), or create_logger().

The AddrMap is now prepared to support alias registers by saving the
registers in a dictionary. That way, registers can easily be accessed
once an alias to a register is found. Furthermore, the addrmap template
is now also loaded from a YAML file. Lastly, the first preparements to
insert ports into the addrmap module are made.

For templates, the indents do not need to be added anymore to the
template. Now, a seperate method will automatically indent the RTL
based on simple rules (e.g., increment indent if `begin` is found).
The CLI also supports settings for the tabs (i.e., real tabs or spaces
and the tab width).

A lot of functionality from the __init__() method of the field class
got reorganized. More logic will be reorganized in the future.

srdl2sv/log/log.py

@@ -1,6 +1,8 @@
 import logging
 from typing import Optional
 
+# TODO: In general, it would be more useful if the hierarchy of the objects pop up
+#       in the logs, not the Python objectname and than the name of the SRDL object.
 class CustomFormatter(logging.Formatter):
     """Logging Formatter to add colors and count warning / errors"""