Refactoring, added shared functions

- Added ESX.ShowHelpNotification
- Added misc shared functions

shared/functions.lua

@@ -0,0 +1,61 @@
+local Charset = {}
+
+for i = 48,  57 do table.insert(Charset, string.char(i)) end
+for i = 65,  90 do table.insert(Charset, string.char(i)) end
+for i = 97, 122 do table.insert(Charset, string.char(i)) end
+
+ESX.GetRandomString = function(length)
+	math.randomseed(GetGameTimer())
+
+	if length > 0 then
+		return ESX.GetRandomString(length - 1) .. Charset[math.random(1, #Charset)]
+	else
+		return ''
+	end
+end
+
+ESX.TableContainsValue = function(table, value)
+	for k, v in pairs(table) do
+		if v == value then
+			return true
+		end
+	end
+
+	return false
+end
+
+ESX.TableToString = function(table, nb)
+	if nb == nil then
+		nb = 0
+	end
+
+	if type(table) == 'table' then
+		local s = ''
+		for i = 1, nb + 1, 1 do
+			s = s .. "    "
+		end
+
+		s = '{\n'
+		for k,v in pairs(table) do
+			if type(k) ~= 'number' then k = '"'..k..'"' end
+			for i = 1, nb, 1 do
+				s = s .. "    "
+			end
+			s = s .. '['..k..'] = ' .. ESX.TableToString(v, nb + 1) .. ',\n'
+		end
+
+		for i = 1, nb, 1 do
+			s = s .. "    "
+		end
+
+		return s .. '}'
+	else
+		return tostring(table)
+	end
+end
+
+
+ESX.Round = function(value)
+	return value >= 0 and math.floor(value + 0.5) or math.ceil(value - 0.5)
+end
+