Updated configuration variables for opentelemetry output plugin, many new ones added. Fixes #2083 (#2110)

* Removing a readme file this is not standardized in classic-mode directory.

Signed-off-by: Eric D. Schabell <eric@schabell.org>

* Updated to not use readme file in classic-config directory, but the correct description file.

Signed-off-by: Eric D. Schabell <eric@schabell.org>

* Updated to better sort some sections and update for missing entries. Fixes #2108.

Signed-off-by: Eric D. Schabell <eric@schabell.org>

* Updated configuration variables for opentelemetry output plugin, many new ones added.

Signed-off-by: Eric D. Schabell <eric@schabell.org>

* Updated configuration variables for opentelemetry output plugin, many new ones added. Fixes #2083

Signed-off-by: Eric D. Schabell <eric@schabell.org>

* Fixes reqeusted by reviewers for options table for opentelemetry output plugin.

Signed-off-by: Eric D. Schabell <eric@schabell.org>

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Signed-off-by: Eric D. Schabell <eric@schabell.org>

Author: eschabell