drm_hwcomposer: Add script for quick build and deploy drm_hwcomposer

It should help us with manual testing.

Can be also embedded into vscode:

--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,18 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "build",
+            "type": "shell",
+            "problemMatcher": "$gcc",
+//            "command": "./presubmit.sh",
+            "command": "HWCLOG=1 TESTDEV=rpi4-userdebug ./build_deploy.sh",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ]
+}

To initiate the build press crtl+shift+b