Added a few more commands to the exportDirInitialisedCheckNeededList

[ShivanshGahlot]

Describe the changes in this pull request

Added a few more commands to the exportDirInitialisedCheckNeededList to ensure they don't throw a segmentation fault error when run on an empty export dir:

"yb-voyager analyze-schema"
"yb-voyager import data"
"yb-voyager import data to target"
"yb-voyager import data to source"
"yb-voyager import data to source-replica"
"yb-voyager export data from target"

Describe if there are any user-facing changes

For the commands mentioned above, if run on an empty export dir the following message will be displyed:

How was this pull request tested?

Tested it manually by running the command on an empty export dir

Does your PR have changes that can cause upgrade issues?

Component	Breaking changes?
MetaDB	No
Name registry json	No
Data File Descriptor Json	No
Export Snapshot Status Json	No
Import Data State	No
Export Status Json	No
Data .sql files of tables	No
Export and import data queue	No
Schema Dump	No
AssessmentDB	No
Sizing DB	No
Migration Assessment Report Json	No
Callhome Json	No
YugabyteD Tables	No
TargetDB Metadata Tables	No

[priyanshi-yb]

LGTM