Add serve command to build and serve static files

- needed an http server to serve 'wasm' extension
- I typically use nginx in one-time docker container run mapped to local directory to serve files
  - needed to add custom nginx config to serve "application/wasm" mime type
- interested in adding info to Yew docs, looked at website which I then looked at Rollup example source
  - they recommend using python http server
- found myself on Rust WASM RFCs github page with "watch and serve" command RFC
  - rustwasm/rfcs#10

.gitignore

@@ -1,6 +1,5 @@
 /target
 **/*.rs.bk
 Cargo.lock
-bin/
 pkg/
 wasm-pack.log

bin/serve.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env sh
+
+wasm-pack build --target web
+
+cd pkg
+echo "Server started at http://localhost:8000 from $PWD"
+docker run -p 8000:80 --rm -v "$HOME/.profile_sources/server/custom-types.conf":/etc/nginx/conf.d/custom-types.conf:ro -v "$PWD":/usr/share/nginx/html:ro nginx:alpine