New "Convenient" Policy

The "Advanced" policy was relaxed a little bit and from that a "Convenient" policy was born.
This policy uses more RAM than "Advanced" but allows convenient editing of full content of files from ./Evolving/ folder, still avoiding flashing.
Mind in a more restrictive "Advanced" policy even printf() strings from ./Evolving/ are ROMed so this property can very useful.

The policy is well suited for SplitCode beginners.