Parsed Instruction Components

[buffalojoec]

Right now we have components for Account and Transaction, but
we don't have any for TransactionInstruction.

On both the Transactions and Explorer pages, we should be able to see
parsed transactions, and then within those parsed transactions, parsed
instructions.

For now, we can follow the same pattern as the account components
(base -> parsed -> extensions) and do parsed transaction -> parsed instruction.

Later on, we'll optimize the GraphQL queries to be able to parse directly from
the transaction and avoid duplicating getTransaction calls.

[Hrushi20]

I'll work on this issue.