Add context to all migrators

[ccoVeille]

As per discussed here

passing context is a better option for all other datasource migrators as our migrator interface doesn't have context as paramter in the following methods:

type migrator interface {
	checkAndCreateMigrationTable(c *container.Container) error
	getLastMigration(c *container.Container) int64

	beginTransaction(c *container.Container) transactionData

	commitMigration(c *container.Container, data transactionData) error
	rollback(c *container.Container, data transactionData)
}

[ccoVeille]

But we have to wait for this one to be merged

• Supporting Migrations For MongoDB #1170

[afzal442]

Hi, I would like to take this up. This is going to be a straightforward upgrade. Right?

[afzal442]

cc @coolwednesday @aryanmehrotra any thought?