feat: implement consul discovery module & fix some typos

[CocaineCong]

What this PR does:

add consul discovery module

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

what is change as following:

1. fix some typos:

eg :
serialzer-->serializerType ，EexpireTime -->ExpireTime

2. add judge in map

eg:

serializer, ok := undoLogContext[serializerKey]
if !ok {
    return
}

3. implement consul discovery

[CLAassistant]

All committers have signed the CLA.

[slievrly]

Note the version of hashicorp BSL license change, which is not compatible with the Apache license.

[CocaineCong]

Note the version of hashicorp BSL license change, which is not compatible with the Apache license.

got it, sorry for my mistaken.