Bump V3.0.22 (#110)

* change simulator svg

* change radio image

* Remove google fonts cdn

* change color of 'advanced' button

* font fix

* font fix 2

* display fix

* change fullsceen simulator bg

* Continuous servo

* handle continuous state

* adding shims

* update rendering for continuous servos

* fixing sim

* fix sig

* typo

* fix sim

* bump pxt

* bump pxt

* rerun travis

* Input blocks revision

- add Button and Pin event types
- merge onPinPressed & onPinReleased in new onPinEvent function
- create new onButtonEvent function

* update input blocks in docs and tests

* remove device_pin_release block

* Hide DAL.x behind Enum

* bring back deprecated blocks, but hide them

* shims and locales files

* fix input.input. typing

* remove buildpr

* bump V3

* update simulator aspect ratio

* add Loudness Block

* revoke loudness block

* Adds soundLevel

To be replaced by pxt-common-packages when DAL is updated.

* Remove P0 & P3 from AnalogPin

Co-authored-by: Juri <gitkraken@juriwolf.de>

libs/radio/_locales/radio-jsdoc-strings.json

@@ -19,7 +19,7 @@
   "radio.onReceivedValue": "Registers code to run when the radio receives a key value pair.",
   "radio.onReceivedValueDeprecated": "Registers code to run when the radio receives a key value pair. Deprecated, use\nonReceivedValue instead.",
   "radio.raiseEvent": "Sends an event over radio to neigboring devices",
-  "radio.readRawPacket": "Internal use only. Takes the next packet from the radio queue and returns its contents + RSSI in a Buffer",
+  "radio.readRawPacket": "Internal use only. Takes the next packet from the radio queue and returns its contents + RSSI in a Buffer.\n@returns NULL if no packet available",
   "radio.receiveNumber": "Reads the next packet from the radio queue and returns the packet's number\npayload or 0 if the packet did not contain a number.",
   "radio.receiveString": "Reads the next packet from the radio queue and returns the packet's string\npayload or the empty string if the packet did not contain a string.",
   "radio.receivedBuffer": "Returns the buffer payload from the last packet taken from the radio queue\n(via ``receiveNumber``, ``receiveString``, etc) or the empty string if that\npacket did not contain a string.",

libs/radio/shims.d.ts

@@ -16,7 +16,8 @@ declare namespace radio {
     function raiseEvent(src: int32, value: int32): void;
 
     /**
-     * Internal use only. Takes the next packet from the radio queue and returns its contents + RSSI in a Buffer
+     * Internal use only. Takes the next packet from the radio queue and returns its contents + RSSI in a Buffer.
+     * @returns NULL if no packet available
      */
     //% shim=radio::readRawPacket
     function readRawPacket(): Buffer;

libs/radio/targetoverrides.ts

@@ -195,7 +195,8 @@ namespace radio {
     //% deprecated=true
     export function writeValueToSerial() {
         const p = RadioPacket.getPacket(radio.readRawPacket());
-        writeToSerial(p);
+        if(p)
+            writeToSerial(p);
     }
 
     /**