[#7]: Updated config import logic to use repo

Updated configuration logic for importing config from file to use the
Projects repository for performing operations.  Added context mananager
operation to Projects repo to perform all operations in a single
transaction with DB.  Started updating cmd interpreter for import
command.
[#7]: Updated config import logic to use repo

Updated configuration logic for importing config from file to use the
Projects repository for performing operations.  Added context mananager
operation to Projects repo to perform all operations in a single
transaction with DB.  Started updating cmd interpreter for import
command.
[#7]: Added import command implementation

Added basic import command, have not tested for all scenarios yet,
but the basics work.