change column name type to record_type

[iDevoid]

Hi @kcajmagic
I made the changes that you requested on issue #8
What I did:

• I search type on your repo one by one, what i found that query with column name type is in 2 packages, cassandra and postgresql. I also searched in executor.go files, which have query inside. cassandra executor has no type column, it's already record_type. and in postgresql executor has no column names type or record_type.
• I changed the json, bson and gorm name which was type at the first to recordtype, since, i don't know if this is needed or not, if it's not needed, i'll change it back to type. because this one is the top json structure, even the name of struct is Record. that doesn't specify the json name. it would look like this

{
    "type": 1,
    "deviceid": 1
}

to

{
    "recordtype": 1,
    "deviceid": 1
}

[CLAassistant]

All committers have signed the CLA.

[codecov-io]

Codecov Report

Merging #10 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #10   +/-   ##
=======================================
  Coverage   57.97%   57.97%           
=======================================
  Files          15       15           
  Lines        1035     1035           
=======================================
  Hits          600      600           
  Misses        433      433           
  Partials        2        2

Impacted Files	Coverage Δ
postgresql/db.go	39.47% <100%> (ø)	⬆️
cassandra/db.go	50.56% <100%> (ø)	⬆️

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[kcajmagic]

Awesome, looks good.

[kcajmagic]

@iDevoid can you please sign the cla so I can merge this PR.

[iDevoid]

sorry for taking a lot of time to sign it @kcajmagic
It was so hard to access the cla-assistant.io. I got HTTP error 524, I think my internet is bad to access that site.
Thank you for let me working on your repo, I hope I can work on this repo again. 😄 🙏

[kcajmagic]

@iDevoid, we have been having problems with the assistant the past couple of days too. We love contributors if you would like to help more take a look at some hacktoberfest issues. This one could be fun for you.