This patch implements evolving support for configuring aliases and defaults for the noms cli (started with #2131)
For an introduction, please take a look at the sample code here: https://github.com/attic-labs/noms/blob/master/samples/cli/nomsconfig/README.md
Improvements include:
- All go samples now work with .nomsconfig
- Absolute paths in ldb specs are now properly handled
- Add -v|--verbose flag to commands to debug expansion
- Make default just another alias and change [default] section to [db.default]
- Introduce the `.` shorthand to refer to a previously mentioned dataset/object
* Implement noms cli configuration support
- Introduce .nomsconfig
- Supports a default db to use when no explicit db is given
- Supports defining db aliases to use as short hand for db urls
- See samples/cli/nomsconfig for more info
fix: #2131
