fix(Core/Player): Use SkillLineAbility.dbc to determine player initia… (#6015)

* fix(Core/Player): Use SkillLineAbility.dbc to determine player initial spells - skill assignment done in a new table `playercreateinfo_skills`

* Cherry-pick 2a3546ca36

* Cherry-Pick d28b66bca8

* Cherry-Pick 193408f335

- Closes https://github.com/azerothcore/azerothcore-wotlk/issues/1659
- Closes https://github.com/azerothcore/azerothcore-wotlk/issues/6036
- Closes https://github.com/chromiecraft/chromiecraft/issues/693

Co-Authored-By: Shauren shauren.trinity@gmail.com
Co-Authored-By: Rothend 67004168+Rothend@users.noreply.github.com
Co-Authored-By: claudiodfc claudio.daniel.f.c@gmail.com

src/server/game/Entities/Player/Player.h

@@ -282,6 +282,14 @@ struct PlayerCreateInfoAction
 
 typedef std::list<PlayerCreateInfoAction> PlayerCreateInfoActions;
 
+struct PlayerCreateInfoSkill
+{
+    uint16 SkillId;
+    uint16 Rank;
+};
+
+typedef std::list<PlayerCreateInfoSkill> PlayerCreateInfoSkills;
+
 struct PlayerInfo
 {
     // existence checked by displayId != 0
@@ -296,8 +304,9 @@ struct PlayerInfo
     uint16 displayId_m{0};
     uint16 displayId_f{0};
     PlayerCreateInfoItems item;
-    PlayerCreateInfoSpells spell;
+    PlayerCreateInfoSpells customSpells;
     PlayerCreateInfoActions action;
+    PlayerCreateInfoSkills skills;
 
     PlayerLevelInfo* levelInfo{nullptr};                             //[level-1] 0..MaxPlayerLevel-1
 };
@@ -1693,7 +1702,9 @@ public:
     void learnSpell(uint32 spellId);
     void removeSpell(uint32 spellId, uint8 removeSpecMask, bool onlyTemporary);
     void resetSpells();
-    void learnDefaultSpells();
+    void LearnCustomSpells();
+    void LearnDefaultSkills();
+    void LearnDefaultSkill(uint32 skillId, uint16 rank);
     void learnQuestRewardedSpells();
     void learnQuestRewardedSpells(Quest const* quest);
     void learnSpellHighRank(uint32 spellid);