FIX - Rename Builder functions to follow Converter functions naming scheme

Rename builder functions to follow converter functions naming scheme. 

Obs: Keep old names as well for v1.1.0, so it is still backwards compatible with v1.0.0 

Example: change Builder.adj_list() to Builder.from_adjlist()

- [ ] Change function names
- [ ] Add deprecation warning
- [ ] Correct README examples
- [ ] Create new issue on backlog for total removal in v2 releases