Ci (#3)

* feat(ci): added circle ci config

* refactor(ci): checkout before running test

* refactor(ci): install stable toolchain for stable test

* refactor(README): added ci badge to README

[ci skip]

.circleci/config.yml

@@ -0,0 +1,61 @@
+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: circleci/rust:latest
+    steps:
+      - checkout
+      - restore_cache:
+          key: project-cache
+      - run:
+          name: Check formatting
+          command: |
+            rustfmt --version
+            cargo fmt -- --check
+      - run:
+          name: Nightly Build
+          command: |
+            rustup toolchain install nightly
+            rustup run nightly rustc --version --verbose
+            rustup run nightly cargo --version --verbose
+            rustup run nightly cargo build
+      - run:
+          name: Stable Build
+          command: |
+            rustup toolchain install stable
+            rustup run stable rustc --version --verbose
+            rustup run stable cargo --version --verbose
+            rustup run stable cargo build
+      - run:
+          name: Wasm Build
+          command: |
+            rustup toolchain install nightly
+            rustup update
+            rustup target add wasm32-unknown-unknown --toolchain nightly
+            rustup run nightly cargo build --release --target wasm32-unknown-unknown
+      - save_cache:
+          key: project-cache
+          paths:
+            - "~/.cargo"
+            - "./target"
+  test:
+    docker:
+      - image: circleci/rust:latest
+    steps:
+      - checkout
+      - run:
+          name: Test
+          command: |
+            rustup toolchain install nightly
+            rustup run nightly cargo test
+            rustup toolchain install stable
+            rustup run stable cargo test
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - build
+      - test:
+          requires:
+            - build

README.md

@@ -1,5 +1,7 @@
 # XDR RS Serialize
 
+[![CircleCI](https://circleci.com/gh/kochavalabs/xdr-rs-serialize.svg?style=svg)](https://circleci.com/gh/kochavalabs/xdr-rs-serialize)
+
 Xdr-rs-serialize is a library for facilitating the (de)serialization of rust
 objects into the [XDR](https://en.wikipedia.org/wiki/External_Data_Representation)
 format.