Synthesis microarchitecture automatically

[ryukzak]

After: #154 #155 #156

We need:

• design metrics to make a decision about the microarchitecture and write a meaningful estimate function
• add CLI argument: --auto-microarchitecture
  • if --microarchitecture is not presented, start with empty BusNetwork
  • if --microarchitecture is presented, start with the specified microarchitecture and auto-modify it
  • if --auto-microarchitecture is not presented - avoid microarchitecture synthesis.
• debug it on example algorithms and add tests.

[BasicEC]

@ryukzak

I propose to rename --auto-microarchitecture to --auto-uarch.
Also, based on the implementation that was made in #195 , I propose the following behavior:

1. --auto-uarch is presented with --uarch - then --auto-uarch is ignored (because there should be prototypes specified in config file)
2. --auto-uarch is presented and --uarch is not - then we start with BusNetwork without PUs and all default prototypes.
   (I guess SPI also should be presented in BusNetwork because SPI prototypes disabled because of Multiple SPIs lead to errors #194
3. --auto-uarch is not presented - avoid microarchitecture synthesis, start with default BusNetwork.

Therefore, we need to additionally add the loading of the list of prototypes from the configuration file.