Update some system files

[MiguelDD1]

It still not compiles, but it merges these files from polkadot-v0.9.29

[linear]

AVA-350 Add `CheckNonZeroSender` Signed Extension

Description

In some blockchains, the null address (a.k.a 0x0000…0) is used to burn/destroy tokens because nobody holds the associate private key.

However that is not true in substrate, where it is a sort of public/well known private key.

It means that someone sends some tokens/funds into the null address instead of burn them (natively), then anyone could use them, like transfer them into real wallet or use to spam the network with transactions.

Solution

Add CheckNonZeroSender to our Signed Extension in the Runtime. It will requires an substrate upgrade to branch > polkadot-v0.9.16 at least. The latest branch is polkadot-v0.9.29 ATM.

Reference:

• Upgrade to v0.9.16
• Introduce CheckNonZeroSender