add gitpod files

.gitpod.Dockerfile

@@ -0,0 +1,16 @@
+FROM gitpod/workspace-full
+
+USER gitpod
+RUN mkdir ~/tools
+RUN npm install --global @stacks/cli --prefix ~/tools
+
+ENV PATH="$HOME/tools/bin:$PATH"
+ENV PATH="$HOME/.cargo/bin:$PATH"
+
+RUN cd ~/tools; git clone https://github.com/lgalabru/clarity-repl --depth 1
+RUN cd ~/tools/clarity-repl;cargo install --bin clarity-repl --path .
+
+RUN cd ~/tools; git clone https://github.com/blockstack/stacks-blockchain --depth 1
+RUN cd ~/tools/stacks-blockchain/testnet/stacks-node;cargo build --release --bin stacks-node;
+
+USER root

.gitpod.yml

@@ -0,0 +1,10 @@
+image:
+  file: .gitpod.Dockerfile
+
+tasks:
+  - init: yarn
+
+vscode:
+  extensions:
+    - [email protected]:rBhb1NsIYs1/wpFyiyXNdA==
+    - [email protected]:Tbu8dTz0i+/bgcKQTQ5b8g==