add mysql + update build

deps/premake/sqlpp11.lua

@@ -0,0 +1,26 @@
+sqlpp11 = {
+	source = path.join(dependencies.basePath, "sqlpp11"),
+}
+
+function sqlpp11.import()
+	sqlpp11.includes()
+end
+
+function sqlpp11.includes()
+	includedirs {
+		path.join(sqlpp11.source, "include"),
+		path.join(dependencies.basePath, "date/include"),
+	}
+end
+
+function sqlpp11.project()
+	project "sqlpp11"
+		language "C++"
+
+		sqlpp11.includes()
+
+		warnings "Off"
+		kind "StaticLib"
+end
+
+table.insert(dependencies, sqlpp11)