TOML compatible config file

[John-Appleseed]

Radicale's config file is very close to the TOML config format.
For TOML parsers to work with Radicale configs:

• Allow strings with quotes. ex hosts = "127.0.0.1:5232"

TOML Config Test

# Install dasel
go install github.com/tomwright/dasel/cmd/dasel@master

# Write config options with dasel to radicale/config
dasel put -p toml string -f "radicale/config" "server.hosts" "127.0.0.1:5232"

[pbiering]

can you please create a PR for that?