Tracking issue for RFC 54: Initial and reset values on memory read ports

[wanda-phi]

• RFC PR: RFC 54: Initial and reset values on memory read ports. rfcs#54
• Implementation PR: TODO (milestone 0.6)

[whitequark]

Due to the potential for disruption of memory inference, the implementation for this feature should not be merged until either:

• After Amaranth 0.5 is released.
• Memory inference is confirmed to work with vendor toolchains at least on major platforms.
• There is a clearly marked workaround for cases where memory inference fails due to the changes made according to this RFC.