Necromancer Editable Skill Tree Edit for D2RMM

Made it possible to simply modify static parameter values from each Necromancer skills. To check if the mod is working, check the skills tab since it should also update the values within.

Food for thought:

1.) This mod only enables modification of parameter values in "skills.txt" and the max pet amount of summons.

2.) Summon count of Iron Golem was not configured (still 1) since I want to keep the persisting summon unique and don't know how to modify the code to make other iron golem summons be persistent.

3.) I made Max Number of Summons to 99.

4.) I made Max Number of Teeth Missile to 99.

5.) Did not modify mana cost since there are already a lot of mods that give infinite mana/mana regen.

6.) If using any other mod that modify skill tree values of Necro, put this on higher priority if you want these changes to take effect rather than other mods that modify the same file and columns.

I will try to create and share for the other classes once I get some free time from work. Thanks!