Feat: Add DBCStores access via Lua with getters for DBC entries

[iThorgrim]

This pull request introduces functionality to access and interact with DBC data through Lua in Eluna, enabling developers to retrieve and utilize server-loaded DBC entries programmatically.

Key Features:

1. DBC Entry Lookup:
   • Load specific DBC entries using the table name and a primary key.
   • Example:

     local spell_dbc = LookupEntry("Spell", 133)

2. Getters:
   • Retrieve DBC attributes using predefined getter methods for the loaded entry.
   • Example:

     print(spell_dbc:GetSpellFamilyName())

Test performed :

Lua Script:

print("=== Testing DBCStores Access ===")

-- Test 1: Lookup a Spell DBC entry
local spell_dbc = LookupEntry("Spell", 133) -- Fireball
if spell_dbc then
    print("Test 1: Spell DBC entry found!")
    print("Spell Family Name:", spell_dbc:GetSpellFamilyName())
    print("Spell School Mask:", spell_dbc:GetSchoolMask())
else
    print("Test 1: Failed to find Spell DBC entry!")
end

-- Test 2: Lookup a GemProperties entry
local gem_dbc = LookupEntry("GemProperties", 21)
if gem_dbc then
    print("Test 2: GemProperties DBC entry found!")
    print("ID:", gem_dbc:GetId())
    print("Spell Item Enchantement:", gem_dbc:GetSpellItemEnchantement())
else
    print("Test 2: Failed to find GemProperties DBC entry!")
end

-- Test 3: Invalid DBC entry
local invalid_dbc = LookupEntry("InvalidTable", 999)

Results: