issue #76: Fixed MosaicInfoDTO fields with new cow DTO content

[evias]

Fixed MosaicInfoDTO in response of issue #76 .

#76

Fields updated in cow network upgrade when calling /mosaic/{mosaicId} endpoint, in MosaicInfoDTO:

• Removed field meta.active
• Removed field meta.index
• Removed field mosaic.nonce
• Added field mosaic.revision

[coveralls]

Pull Request Test Coverage Report for Build 206

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 10 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.7%) to 71.168%

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Files with Coverage Reduction	New Missed Lines	%
src/model/namespace/NamespaceId.ts	2	66.67%
src/service/NamespaceService.ts	8	21.43%

Totals
Change from base Build 202:	-0.7%
Covered Lines:	1006
Relevant Lines:	1294

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 207

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.8%) to 71.098%

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Totals
Change from base Build 202:	-0.8%
Covered Lines:	1002
Relevant Lines:	1290

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💛 - Coveralls