+ added initial files of webclient using flask

static/google-code-prettify/run_prettify.js

templates/_messages.html

templates/api/base.html

templates/api/index.html

templates/api/result.html

templates/base.html

templates/footer.html

templates/nav.html

templates/wallets/base.html

templates/wallets/detail.html

templates/wallets/index.html

templates/wallets/new.html

webclient.py