Added Perk, Trait and Profession API

[aiteron]

No description provided.

[Shurutsue]

One thing which I'd say is the biggest issue in the changes done:

https://github.com/Konijima/PZ-Community-API/pull/56/files#diff-e1819cf570d6ce02c23cc2c2f4fc2a82b25b3ca7d2166f68dab0c789be5f9589R17-R19
Instead of Shared at the end it's Client?
Is that for use in the Client only - or does that affect the server as well?
If the server requires usage of it as well, it should be shared, otherwise should/could be shoved directly
into the Client folder i reckon.

Aside of that, from a quick glance, there's also:

The Class.__index = Class lines outside the function which sets the metatable should not be needed in these two files:
https://github.com/Konijima/PZ-Community-API/pull/56/files#diff-5fe3c0c113313cab9be3126f3c0f3586137360bc7d6160f5c3dade8f5698b09fR3
https://github.com/Konijima/PZ-Community-API/pull/56/files#diff-0802e12d1e1696eb3df47cd5a0c3b24f94bd13107485b13ae7f839bde2ee950eR3

Additionally missing a new line at the end of various files.

[aiteron]

https://github.com/Konijima/PZ-Community-API/pull/56/files#diff-e1819cf570d6ce02c23cc2c2f4fc2a82b25b3ca7d2166f68dab0c789be5f9589R17-R19 Instead of Shared at the end it's Client? Is that for use in the Client only - or does that affect the server as well? If the server requires usage of it as well, it should be shared, otherwise should/could be shoved directly into the Client folder i reckon.

This must be shared, because server must know about new traits, perks and professions