PDI-2875 - Environment Variables in Text File Input Error Handling doesn't work

Test case and cleanup
PDI-2875 - Environment Variables in Text File Input Error Handling doesn't work
PDI-10948 - JSON Input step suppresses errors
PDI-3064 - Mapping / Sub-transformation doesn't pick up named parameters defined in parent if they are also defined in the subtrans

junits added
PDI-3064 - Mapping / Sub-transformation doesn't pick up named parameters defined in parent if they are also defined in the subtrans.

fix provided
PDI-11804 - Microsoft Excel Writer step errors out with a misleading error message when the sheetname is longer than 31 characters
[PDI-11190]: Do not create file at start is still creating zero byte files

There are fix and unit test.
Merge pull request #494 from TatsianaKasiankova/PDI-11190

[PDI-11190]: Do not create file at start is still creating zero byte files
[CLEANUP]: Add core plugins to checkstyle coverage
Merge pull request #484 from pavel-sakun/PDI-10948

PDI-10948 - JSON Input step suppresses errors
Merge pull request #495 from mattyb149/master

[CLEANUP]: Add core plugins to checkstyle coverage
Merge pull request #476 from pavel-sakun/PDI-2875

PDI-2875 - Environment Variables in Text File Input Error Handling doesn't work
Merge pull request #490 from pavel-sakun/PDI-11804

PDI-11804 - Microsoft Excel Writer step errors out with a misleading err or message when the sheetname is longer than 31 characters
Merge pull request #327 from prakapenka/PDI-3064

PDI-3064 - Mapping / Sub-transformation doesn't pick up named parameters defined in parent if they are also defined in the subtrans
fixed minor bug on a mispelled dependency
Merge pull request #496 from andtorg/master

fixed minor bug on a mispelled dependency