* read test config from local file
Allows local configuration of the test environment by reading from
a .toml config file. If no file exists, the file read is a no-op. Value
prioritization is specified in the readTestConfig() func.
* add backup to operations
Extend the operations set with a backupOperation. New backup
operations are created through an existing repository and, once
created, can be Run synchronously.
Integration tests have a skeleton, but the meat of them is on hold
while dependencies undergo implementation.
* remove operation progress
* introduce operations (#114)
Adds the /internal/operations package. This is a starting point
which only includes the base operation struct and handling.
Per-process (backup/restore) operations to come at a later time.
* adding comments for clarity in op_progress
