Why are the "fuel-asm", "fuel-types", and "fuel-tx" crates duplicated in this repository?

[PaulRBerg]

In the CONTRIBUTING.md guide of the fuel-core repository, we are told that:

The Client team actively develops and maintains several dependencies used in Fuel Core, which you may be also interested in:

• fuel-types
• fuel-merkle
• fuel-tx
• fuel-asm
• fuel-vm

So I find it a bit confusing that I find fuel-asm, fuel-types, and fuel-tx existing as crates part of this repository (fuel-vm), as well as independent crates living in separate repositories.

What is the most up-to-date version of these crates, and why are they duplicated?

[adlerjohn]

#269

Issue ☝️ needs more description, but TL;DR those are the repos from before the monorepo migration. They'll be archived shortly. fuel-vm will contain the monorepo of those crates.