Mysql changes  and test cases

See merge request !46

Mongo DB enhancement + Routebuilder fixes + Cache time fixes

See merge request !47

Nil value and exception handling changes

See merge request !45

Login Service helper + Mongo DB feature added

Closes #3

See merge request !44

FDB save interface data + loggers in error added

See merge request !43

ldapmdl moved to authmdl

See merge request !38

Route builder + service builder changes as per Principal object

See merge request !40

1) Moved ldapmdl to auth mdl
2) Removed config.json
3) Config file changes to test case file

Roshanp bug fixes

See merge request !36

Mysql dal module

See merge request !30

Bolt Db Dal

See merge request !31

Signature changed for cache

See merge request !33

Roshanp master services

See merge request !32

dal written for boltdb
test cases written(100% coverage)

httpclientmdl and validationmdl

See merge request !29

- httpclientmdl - method added for retry support
- httpclientmdl  test cases written (code coverage 97.9%)
- validateStruct method changed
- validationmdl test cases written (cod ecoverage 100%)

testing Data enhancement

See merge request !25

LDAP test cases

See merge request !26

Dpk download mdl

See merge request !28

Removed fmt import and usage of it in code.

Merge branch 'devbranch' of https://corelab.mkcl.org/MKCLOS/coredevelopmentplatform/corepkgv2 into devbranch