added odroid-m2 and test case m2_shell both verified green, added m2_shell_lowboy case, updated sbc_model_framework

sbc_case_builder_accessories.cfg

@@ -243,6 +243,10 @@ accessory_data = [
      "model","fan_cover",37,-4,7,"bottom",[90,0,0],["case",true,false,false],[40,0,3],["fan_1"],[false,10,2,"default"],
      "platter","fan_cover",-50,50,0,"bottom",[0,0,0],["case",false,false,false],[40,0,3],["fan_1"],[false,10,2,"default"]],
      
+     // Odroid-M2
+     ["m2_shell",
+     "add2","button",5.5,56,24,"top",[0,0,180],["sbc-case_z",false,false,true],[12,8,1.5],["cutout",[2,2,2,2],2.25],[true,10,2,"default"]],
+
      // Odroid-M1S
      ["m1s_shell_nvme",
      "sub","vent_hex",37,5,-1,"bottom",[0,0,0],["sbc",false,false,false],[11,3,5],[5,1.5,"horizontal",1],[false,10,2,"default"],