feature/did accounts (#23)

* feat: add support for DID number as primary key for Controllers

* refactor: rename pkg/proxy to app/proxy

* feat: add vault module keeper tests

* feat(vault): add DID keeper to vault module

* refactor: move vault client code to its own package

* refactor(vault): extract schema definition

* refactor: use vaulttypes for MsgAllocateVault

* refactor: update vault assembly logic to use new methods

* feat: add dwn-proxy command

* refactor: remove unused context.go file

* refactor: remove unused web-related code

* feat: add DWN proxy server

* feat: add BuildTx RPC to vault module

* fix: Implement BuildTx endpoint

* feat: add devbox integration to project

.devcontainer/devcontainer.json

@@ -0,0 +1,16 @@
+{
+  "name": "Devbox Remote Container",
+  "build": {
+    "dockerfile": "./Dockerfile",
+    "context": ".."
+  },
+  "customizations": {
+    "vscode": {
+      "settings": {},
+      "extensions": [
+        "jetpack-io.devbox"
+      ]
+    }
+  },
+  "remoteUser": "devbox"
+}