Make jmacd an OTEPs maintainer (need more OTEPs maintainers)

[jmacd]

See #329

I would like to nominate myself as a new OTEPs maintainer since we have not finished the per-signal codeownership changes. I am not sure if the community rules allow this, so I'm filing an issue.

The OTEPs that should merge are
open-telemetry/oteps#108
open-telemetry/oteps#113
open-telemetry/oteps#117
open-telemetry/oteps#118
open-telemetry/oteps#119

[carlosalberto]

Sounds great to me.

[bogdandrutu]

The rule says that only TC members can be maintainers of oteps, so this request should be to make you a TC member which can be discussed in a TC meeting

[bogdandrutu]

Also 119 is not ready because it does not have enough approvers.

[bogdandrutu]

The only PR that is ready to be merged is open-telemetry/oteps#108 which has a comment at the end that more work is coming, so I think the problem is not the maintainers, but reviews.

[lizthegrey]

Agree, this is a TC decision (and also involves necessarily membership in the TC)