better support for BLE UART and alignment with serial blocks. (#276)

* aligning uart apis with serial

* reorganizing serial/bluetooth blocks

* Autoupdate configuration for UART. (#279)

* Autoupdate configuration for UART.

* removing serial autoupdates.

libs/bluetooth/enums.d.ts

@@ -1,20 +1,4 @@
 // Auto-generated. Do not edit.
-
-
-    declare enum Delimiters {
-    //% block="new line"
-    NewLine = 1,
-    //% block=","
-    Comma = 2,
-    //% block="$"
-    Dollar = 3,
-    //% block=":"
-    Colon = 4,
-    //% block="."
-    Fullstop = 5,
-    //% block="#"
-    Hash = 6,
-    }
 declare namespace bluetooth {
 }