UsageRecords API: Description is static

[abdulazizali77]

The corresponding Description property dont map to the actual query category. Should create a hashmap of sorts to map Category to Description
http://localhost:8081/restcomm/2012-04-24/Accounts/ACae6e420f425248d6a26948c17a9e2acf/Usage/Records/Daily?Category=SMS&StartDate=2016-01-01&EndDate=2018-01-01

<RestcommResponse>
<UsageRecords>
<UsageRecord>
<Category>calls</Category>
<Description>Total Calls</Description>
<AccountSid>ACae6e420f425248d6a26948c17a9e2acf</AccountSid>
<StartDate>2017-04-05</StartDate>
<EndDate>2017-04-05</EndDate>
<Usage>9</Usage>
<UsageUnit>minutes</UsageUnit>
<Count>9</Count>
<CountUnit>calls</CountUnit>
<Price>0.0</Price>
<PriceUnit>USD</PriceUnit>
<Uri>/todo</Uri>
</UsageRecord>
<UsageRecord>
<Category>calls</Category>
<Description>Total Calls</Description>
<AccountSid>ACae6e420f425248d6a26948c17a9e2acf</AccountSid>
<StartDate>2017-04-06</StartDate>
<EndDate>2017-04-06</EndDate>
<Usage>4</Usage>
<UsageUnit>minutes</UsageUnit>
<Count>4</Count>
<CountUnit>calls</CountUnit>
<Price>0.0</Price>
<PriceUnit>USD</PriceUnit>
<Uri>/todo</Uri>
</UsageRecord>
</UsageRecords>
</RestcommResponse>