X2Cscope v2 firmware

Scope buffer and size is set at compilation time now (Previously it was fixed in the library) Adds more memory flexibility
Malloc support enabled (by default still static implementation used, but can be used on demand)
New MCU PIC24 added.

What's Changed

• including PIC24EP as target processor by @edras in #1
• Feature/dynamic scope size by @X2Cscope in #3

Full Changelog: v0.6...v2.0