Create geos-utils package with logger, geos constants, geometry functions, ConnectionSet and update dependencies

[mlemayTTE]

The objective is the create a low-level geos-utils package defining utilities common to all other geos python packages.

These utilities are from initial commit of geos-posp and include:

• logger overload to add default formatter
• basic geometrical and algebra functions
• unit definition and conversion tools
• GEOS constant names (GEOS fields, mesh component names, phase names, etc.) and physics constant values

Possible future work:

• Unit tools may need to be improved relying on existing unit management libraries
• GEOS constant names need to be updated with GEOS code. If possible, this part should directly be linked with GEOS code.