Generate solutions for derived roots

[hrzafer]

Keeping derived roots such as gözlük, gözlükçü, gözlükçülük and then remove duplicate solutions is much more complicated than keeping just the pure root words and generate solutions for derived (longer) roots when necessary.

Example: solutions for "gözlükçü" when we have all of "göz", "gözlük", "gözlükçü" in the root dictionary.
root: göz | suffixes: lük + çü
root: gözlük | suffix: çü
root: gözlükçü

Instead we keep a record of derivative suffixes and generate if needed:

göz + lük (d) + çü (d)

[hrzafer]

We should also remove 80 derived roots from the root dictionary.