Remove Lodash dependency

[redgeoff]

With ES6, Lodash isn't needed for many operations. Let's remove it and save on the bundle size and any overhead of having another dependency.

[redgeoff]

• https://github.com/redgeoff/mson/pull/596
• https://github.com/redgeoff/mson/pull/597
• https://github.com/redgeoff/mson/pull/602
• https://github.com/redgeoff/mson/pull/606
• https://github.com/redgeoff/mson/pull/607
• https://github.com/redgeoff/mson/pull/608
• https://github.com/redgeoff/mson/pull/609
• https://github.com/redgeoff/mson/pull/610
• https://github.com/redgeoff/mson/pull/617
• https://github.com/redgeoff/mson/pull/618
• https://github.com/redgeoff/mson/pull/619
• https://github.com/redgeoff/mson/pull/620