Hero's Tiered

Added:

• HerosLib dependency added
• Hero's Levels compat added
• Easy Anvils compat added
• Added spanish translation

Fixed:

• Fixed (#1) about the loot on chest not adding the tiers/modifiers

Changed:

• Rework of the code. From the player's perspective, there shouldn't be any noticeable difference, other than better performance (I hope).
  • Deleted the implementation about tabs and now using the HerosLib feature with tabs.
• Now the luck (and the smithing level if Hero's Levels is present) is additive, reducing the bigger weight (Common)
  • Expect having more Epic and Legendary modifier. But Unique is still very rare.