Support 64-bit integers in Lua correctly

Registered by Kostja Osipov

Lua doesn't have 64-bit integers, Tarantool does. E.g. in Tarantool it's possible to add, substract set and get a 64-bit integer.
It's not the case in Lua.
It should be possible to access a 64-bit integer tuple field from Lua, do field arithmetics with it, and pass it back into tarantool.

Find or implement a cdata package that supports 64-bit integers, and integrate it with box.* API.

Blueprint information

Status:
Complete
Approver:
Kostja Osipov
Priority:
High
Drafter:
None
Direction:
Needs approval
Assignee:
Dmitry Simonenko
Definition:
Approved
Series goal:
Accepted for 1.4
Implementation:
Implemented
Milestone target:
milestone icon 1.4.5
Started by
Kostja Osipov
Completed by
Kostja Osipov

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