Avoid char* warning from C++ compiler

On some SAMD compilers, there was a warning given regarding handling of a constant string. This has been removed with the use of the strcpy() function.

Add Arduino Mega 2560 support

The catalogs had to be recreated specifically for the Mega 2560 using PROGMEM so that the data structures would not be copied to RAM on startup, but would be allowed to be accessed directly from Flash. True 32 bit processors don't have this limitation with const arrays.

Initial Release of Arduino SiderealObjects Library

Initial Release of Arduino SiderealObjects Library