Release v0.7.0: Introducing transient cross-section models

New Features:

• Transient cross-section models in TTim #81
• Improved plotting utlilities for models #76

Examples

• Two new How-To notebooks. Check out the documentation:
  • transient cross-section models
  • fluctuating head boundaries
• A calibration of aquifer parameters in a cross-section model with a tidal river (for those familiar with WATEX).
• Variable entry resistance for a well screened in multiple layers

Other improvements

• Add tests for numba bessel module #77
• Some code improvements and cleanup in #79

What's Changed

• TTim plots by @dbrakenhoff in #76
• Minor improvements to code by @dbrakenhoff in #79
• add tests for numba bessel functions by @dbrakenhoff in #77
• example with variable entry resistance by @mbakker7 in #83
• Add cross-section models by @dbrakenhoff in #81
• Release v0.7.0: Adding cross-sections to TTim by @dbrakenhoff in #86

Full Changelog: v0.6.7...v0.7.0