Tracking issue of GSP-41: Turn Pair Expire into Duration

[Xuanwo]

• Rendered RFC

This is a special case: we will change the type of our global pairs.

At the time we proposal the GSP-41, only one service(qingstor) implement Reach and depends on expire.

Affected Services

• qingstor

Steps

• Add support for time.Duration (Update cmd/definitions/tmpl/service.tmpl to import time package)
• Change pair type from int to time.Duration (Update definitions/pairs.toml pair's type)
• All services that refer to expire change to expire instead (Rebuild with new go-storage)

[Prnyself]

@aeinrw Since #681 is merged, could you please implement this change into go-service-qingstor? The related steps are list here.

[Prnyself]

Good job! @aeinrw