When constructing a NimBLEAddress via string or other non `ble_addr_t` parameters it is important that the address type be specified.
This will help prevent issues where applications are not able to connect or identify scanned devices when comparing their addresses.
This simplifies the NimBLEAddress code by directly using the NimBLE core `ble_addr_t` type to hold the address
and allows using NimBLE core functions and macros to replace code in some methods.
* `getNative()` replaced with `getBase()` and now returns a pointer to `const ble_addr_t` instead of a pointer to the address value.
* Adds `isNrpa()` method to test if an address is random non-resolvable.
* Adds `isStatic()` method to test if an address is random static.
* Adds `isPublic()` method to test if an address is a public address.
* Adds `isNull()` methods to test if an address is NULL.
* Adds `getValue()` method which returns a read-only pointer to the address value.
* Adds `reverseByteOrder()` method which will reverse the byte order of the address value.
* `equals()` method and == operator will now also test if the address types are the same.
* Code cleanup.
* Sets macros to allow compiling when Central role is enabled and Observer disabled, or Peripheral enabled and Broadcaster disabled.
* Adds a macro definition for CONFIG_NIMBLE_CPP_IDF to enable different include paths/functionality for IDF / Arduino.
This allows NimBLE options in menuconfig to reduce code size based on
the roles selected (scan/advertising/central/peripheral).
Significant code space can be saved by removing unnecessary roles for the application.
