In order to be consistent with the rest of the naming scheme, and in order to avoid conflicts with the higher level rust wrappers, which will be using `Notcurses` for the wrapper struct from now on.
- also deprecate `NotcursesOptions` and rename it to `NcOptions`.
- update examples, docs and readme.
- remove `Nc` & `NcD` wrappers, to move them to notcurses-rs library.
- update the summary header format for Notcurses and NcDirect
- update docs and examples
- raw field of new wrapping structs is now public just to the crate.
- NcNotcurses.stdplane method now doesn't return an NcResult since it can't fail.
- rename NcNotcurses to Notcurses and NcNotcursesOptions to NotcursesOptions.
- rename NcPlane::new_termsize constructor to with_termsize.
- bump MSV to 1.48 for the doc links.
- improve lib documentation.
- minor fixes.
Create new wrapping types that can safely encapsulate the mutable references,
and implement Drop and automatic (de)referencing.
- Notcurses
- rename Notcurses* to NcNotcurses*.
- rename NotcursesOptions to NcNotcursesOptions.
- new Notcurses struct.
- implement Drop, AsRef, AsMut, Deref & DerefMut.
- override stop method to be no-op.
- reimplement constructors and associated methods.
- remove without_altscreen_with_banners constructor.
- update examples and tests.
- rustfmt.
- new example poc-menu (WIP).
- improve constructors for NcMenu*.
- divide NcMenu* methods into submodules.
- fix return type for NcPlane constructors.
- use NcResult on functions returning references.
- fix a couple of Notcurses methods.
- add more NcChannelPair methods.
- refactor NcInput constructors.
- rename error_ptr![] to error_ref_mut![]
- new macro cstring_mut![].
- new error_ref![] macro.
- update examples & tests.
- bump version in readme.
- receive a variable number of arguments.
- make rsleep use methods and deal with NcResult.
- new fsleep to flush an NcDirect context.
- fix macro usages in examples.
- made const NotcursesOptions constructors.
- refactor Notcurses constructors to return NcResult.
- pass NotcursesOptions by value, since it's Copy.
- update tests.
- add helper modules for Notcurses & NcPlane.
- new initialization functions to be used in tests.
- BONUS:
- refactor NcDirect
- update examples.
