BSP update

- Add basic LED BSP
- Moved generic examples to the HAL
- Updated rust edition to 2021
- Updated README to provide full instructions for flashing and building
- Added jlink.gdb file to command line flashing

.vscode/launch.json

@@ -0,0 +1,22 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "cortex-debug",
+            "request": "launch",
+            "name": "Debug Blinky",
+            "servertype": "jlink",
+            "gdbPath": "/usr/bin/gdb-multiarch",
+            "cwd": "${workspaceRoot}",
+            "device": "VA10820",
+            "svdFile": "../va108xx-rs/va108xx.svd",
+            "preLaunchTask": "rust: cargo build minimal blinky",
+            "executable": "${workspaceFolder}/target/thumbv6m-none-eabi/debug/examples/blinky-leds",
+            "interface": "jtag",
+            "runToMain": true,
+        },
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,19 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "rust: cargo build blinky",
+            "type": "shell",
+            "command": "~/.cargo/bin/cargo", // note: full path to the cargo
+            "args": [
+                "build", "--example", "blinky-leds",
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+    ]
+}