Consider implicit inner dim in return_vars name check

See merge request !128

Split Start() into internal functions. Part I

See merge request !125

Fix the calendar retrieving line to consider synonims.

See merge request !127

Remove incorrect check of character selector.

See merge request !126

Develop wrong name return vars

See merge request !124

If the name of return_vars is the synonmin of inner dim name, change it back to inner dim name. Unit test added.

Merge master into production

See merge request !123

Update version number to 2.1.0-2

See merge request !122

Force return_vars to have value when inner dim has dependency on file dim.

See merge request !121

Warning update for parameter crop in transform_params

See merge request !120

Develop time attr month unit

See merge request !119

slides ecFlow config

See merge request !118

Fixing use cases 1-12 and 2-1

See merge request !117

Merging master version 2.1.0-1 into production not submitted to CRAN

See merge request !116

fixing not found .KnownLonNames issue 84

See merge request !115