Change Language and Binding Metrics

#3826 is related

We'd like to change the way bindings and language metrics are done to improve how we can consume on the analytics side.

Currently, we emit metrics in a dot separated form unique to each language/binding:

string1.string2.JavaScript
string1.string.Java
etc.

We'd like this to become

string1.string2 | JavaScript
string1.string2 | Java

with the language/binding information as part of a separate column so we don't have to do regex parsing on the analytics side.

Start by reading related issue #3826 and locating where the host emits language and binding metrics. Compare the current dot-separated names with the requested separate language or binding column, and verify that analytics consumers can use the new structure without regex parsing.

Written by the indexing model from the issue text.