detect/asn1: Migrate to Rust - v1

[sharksforarms]

Draft PR: Request for review/comments

• I have read the contributing guide lines at https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Contributing
• I have signed the Open Information Security Foundation contribution agreement at https://suricata-ids.org/about/contribution-agreement/
• I have updated the user guide (in doc/userguide/) to reflect the changes made (if applicable)

Link to redmine ticket: https://redmine.openinfosecfoundation.org/issues/2977

Describe changes:

• Migration of ASN1 decoder and detect module to Rust

PRScript output (if applicable):

TODO:

• 4.0.0 release of https://github.com/rusticata/der-parser/
• Upgrade der-parser to 4.0.0-alpha3 rusticata/kerberos-parser#3
• Update der-parser to 4.0.0-alpha3 rusticata/snmp-parser#7
• Once the above PRs are merged, update rust/Cargo.toml.in

[sharksforarms]

Blockers:

CI: Rust 1.34.2 fails to compile der-parser and ipsec-parser

 Compiling der-parser v4.0.0-alpha3
error[E0658]: use of unstable library feature 'option_xor' (see issue #50512)
   --> /github/home/.cargo/registry/src/github.com-1ecc6299db9ec823/der-parser-4.0.0-alpha3/src/ber/ber.rs:392:33
    |
392 |                 if self.raw_tag.xor(other.raw_tag).is_none() {
    |                                 ^^^

   Compiling ipsec-parser v0.5.0
error[E0658]: use of unstable library feature 'iter_copied' (see issue #57127)
   --> /github/home/.cargo/registry/src/github.com-1ecc6299db9ec823/der-parser-4.0.0-alpha3/src/oid.rs:134:14
    |
134 |             .copied()
    |              ^^^^^^

[victorjulien]

cc @chifflier

[victorjulien]

Some minor comments. Nice work!

[sharksforarms]

Continued: #4965