* Print log messages if inserting of description fails.
* Port V command to RzShell
* Port v (panels) commands to RzShell and drop vi.
Drops the vi command for two reasons:
- vi (open file in editor) is not at all related to the visual mode.
Hence shouldn't be in the same group.
- (Opinionated) Users can just open the file in another
terminal window. Why go the extra way over Rizin?
Replace old command names with something more descriptive.
- v [name] -> vl name
- v= -> vs
* Fix return values
* Add missing space before V command.
* Split up V and v files to allow for definitino of Vp and Vpp commands
* Restructure help for visual mode.
Add VH and VHH for key list in the visual mode.
Remove examples, but add a more detailed description about the key-sequence parameter.
* Introduce `rz_core_gadget_print` API to print gadgets
* Use the API at all instances where the rz_core_cmd was used
* Add a test and doxygen styled documentation for the API
