Added in GeoDist command and tested using the example online, also needs unit tests.

Added in geohash command - needs unit tests.

Added geo pos - needs tests.

started work on tests - moved new types to new files.

Spelling fix. Replaced 'paramter' with 'parameter'

Fixed build error caused by TryGetAzureRoleInstanceIdNoThrow test

Refactoring.

Implemented GeoPosition type and methods.

Updated naming of geodistance

created types needed for geo radius command.

working on GeoRadius method. - needs some more testing.