Add --from to global command options

[sukanyaparashar]

This PR adds --from option to truffle global command options list, which can be used to specify an account to make calls or send transactions. This is related to #5330, where it was discussed to be a separate PR.

[gnidan]

Leaving this approval for you after you decide how you feel about my suggestion :)

[gnidan]

Not sure if it's worth adding this word here:

Suggested change

	"Specify the account from which to make calls or send transactions."
	"Specify the default account from which to make calls or send transactions."

[sukanyaparashar]

Adding the default word makes sense. Thanks for the suggestion, @gnidan.

[gnidan]

Although actually we may want this PR to include the removal of from from the options in each command separately

[sukanyaparashar]

Although actually we may want this PR to include the removal of from from the options in each command separately

We have the allowedGlobalOptions property for each command. Am I missing something what you meant by removal of --from from the options separately, @gnidan?

[sukanyaparashar]

Hey @gnidan. I checked the commands in the core package and couldn't find any other command having --from option. I think truffle call is the only one that will use this option for now.

[gnidan]

Hey @gnidan. I checked the commands in the core package and couldn't find any other command having --from option. I think truffle call is the only one that will use this option for now.

Oh, interesting. Most commands do support this flag today... like truffle test --from=<account> will override things, but I guess it's just not listed as an explicit option everywhere, so you'll get a warning. This is probably fine for now, but might want to revisit this later.

[sukanyaparashar]

I didn't know about that. Thanks @gnidan for letting me know about it. I think we should later on(in a separate PR) add the--from option to the allowedGlobalOptions array for the commands that support it so that the warning goes away.