Add "bricks" from the extension to the PATH of terminals (#411)

![Screenshot 2023-01-31 at 11 59
34](https://user-images.githubusercontent.com/40952/215742320-46b78448-c526-452c-b312-1da3ecf1d383.png)

Author: fjakobs

packages/databricks-vscode/src/extension.ts

@@ -45,6 +45,13 @@ export async function activate(
         return undefined;
     }
 
+    // Add the bricks binary to the PATH environment variable in terminals
+    context.environmentVariableCollection.persistent = true;
+    context.environmentVariableCollection.prepend(
+        "PATH",
+        `${context.asAbsolutePath("./bin")}:`
+    );
+
     const loggerManager = new LoggerManager(context);
     if (workspaceConfigs.loggingEnabled) {
         loggerManager.initLoggers();