Structured telemetry for Clojure/Script applications.

See the GitHub page (esp. Wiki) for info on motivation and design:
  <https://www.taoensso.com/telemere>

OpenTelemetry handler using `opentelemetry-java`,
Ref. <https://github.com/open-telemetry/opentelemetry-java>,
     <https://javadoc.io/doc/io.opentelemetry/opentelemetry-api/latest/index.html>

Email handler using `postal`,
Ref. <https://github.com/drewr/postal>.

Slack handler using `clj-slack`,
Ref. <https://github.com/julienXX/clj-slack>

Basic TCP/UDP socket handlers.

Interop support for standard stream/s -> Telemere.

Main Timbre macros, reimplemented on top of Telemere.
Intended to help ease migration from Timbre to Telemere.

Interop support for tools.logging -> Telemere.
Telemere will attempt to load this ns automatically when possible.

Naming conventions:
  `tools.logging`         - For referring to the library.
  `tools-logging`         - For symbols, keywords, and this namespace.
  `clojure.tools.logging` - For env config to match library's conventions.

Misc utils useful for Telemere handlers, middleware, etc.