Review swagger endpoints

[tonowie]

Review swagger endpoints, identify missing/untested ones and raise issues to eventually cover everything

[tonowie]

see PRs and branches on nemtech repo. e.g. https://github.com/nemtech/nem2-sdk-java/pull/41 can save some time

[tonowie]

swagger definition has following endpoints

'/account':
'/account/{accountId}':
'/account/{publicKey}/transactions':
'/account/{publicKey}/transactions/incoming':
'/account/{publicKey}/transactions/outgoing':
'/account/{publicKey}/transactions/unconfirmed':
'/account/{publicKey}/transactions/partial':
'/account/{accountId}/properties':
'/account/properties':
'/account/{accountId}/multisig':
'/account/{accountId}/multisig/graph':
'/blocks/{height}/limit/{limit}':
'/block/{height}':
'/block/{height}/transactions':
'/block/{height}/transaction/{hash}/merkle':
'/block/{height}/receipts':
'/block/{height}/receipt/{hash}/merkle':
'/chain/height':
'/chain/score':
'/diagnostic/storage':
'/account/{publicKey}/contracts':
'/contract/{accountId}':
'/account/contracts':
'/contract':
'/account/{accountId}/metadata':
'/mosaic/{mosaicId}/metadata':
'/namespace/{namespaceId}/metadata':
'/metadata/{metadataId}':
'/metadata':
'/mosaic/{mosaicId}':
'/mosaic':
'/mosaic/names':
'/namespace/{namespaceId}':
'/account/{accountId}/namespaces':
'/account/namespaces':
'/namespace/names':
'/transaction/{transactionId}':
'/transaction':
'/transaction/partial':
'/transaction/cosignature':
'/transaction/{hash}/status':
'/transaction/statuses':
'/network':
'/node/info':
'/node/time':

[tonowie]

issue #20 is for account properties

[tonowie]

issue #49 was raised to add contract support

[tonowie]

created issue #61 to organize all the routing stuff

[tonowie]

create issue #70 to add node endpoints and move network under blockchain repo

[tonowie]

there might be some minor omissions but vast majority is done and I am closing this ticket. More cleanup will be done with issue #61 where all the mappings will be in one place and easy to review