chore: hoist plugins to root and move main into Details/

Each Details_* plugin and the main Details addon now lives in its own
repo-root folder, matching the Exiles fork-layout convention.

Details/classes/class_error.lua

@@ -0,0 +1,28 @@
+do
+	local _detalhes = 		_G.Details
+	local addonName, Details222 = ...
+
+	local _error = {
+		["error"] = true,
+		["errortext"] = ""
+	}
+	_error.__index = _error
+	_error.__newindex = function()
+		assert(false, "Attempt to modify an read-only object.\nUse object() or object.errortext\n"..debugstack (2, 1 , 0))
+		return
+	end
+	_error.__tostring = function()
+		return _error.errortext
+	end
+	_error.__call = function(_this)
+		print(_this.errortext)
+	end
+	
+	function _detalhes:NewError (_msg)
+		local this_error = {}
+		this_error.errortext = _msg
+		setmetatable(this_error, _error)
+		return this_error
+	end
+
+end