Added Loyalty System (10.74)

[reyaleman]

Pull Request Prelude

• [x] I have followed proper The Forgotten Server code styling.
• [x] I have read and understood the contribution guidelines before making this PR.
• [x] I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

• Implemented LOYALTY SYSTEM
• System is optional, can be disabled in config.lua (loyaltyEnabled = false)
• Loyalty bonuses are customizables in config.lua
• Modified Player::GetPercentLevel to return floats (client support decimal numbers on skill bars)
• Loyalty Titles onLook
• Loyalty message bonus on serverlog (Player:onLogin script)
• Kept skill & tries untouched, loyalty is calculated when the player is loaded.
• Loyalty points are updated on startup but only if it's been more than 1 day since last update (server config)
• Added 3 lua functions (Player:getLoyaltyStatus, Player:addLoyalty & Player:removeLoyalty)
• Added migration file to update database (column "loyalty_points" added to accounts table and inserted server config "loyalty_update" value to update loyalty on a daily basis)

Missing:

• Social loyalty badges (social not implemented yet)
• Loyalty highscores (highscores not implemented yet)

Issues addressed: #3871 Version 10.74 (The Loyalty System was introduced.)

Any comments would be highly appreciated. 😃

[omarcopires]

could you leave some extra functions in LUA to be used in cyclopedia? getLoyaltyMagicLevel, getLoyaltySkill and getLoyaltyTitleDescription

I also think it would be better to move the descriptions to onLook instead of keeping them directly in the engine

[reyaleman]

I'd have to rewrite this and make a new pull request (taking your comments in consideration), IIRC I stopped this because I was having issues with float values being inexact 👀