[pkg/ottl] parse uri string to url.* SemConv attributes

[michalpristas]

Description:
This ottl converter converts uri string into SemConv attributes.
Instead of using regex it uses uri.Parse providing nicer shorthand.

Link to tracking Issue: #32433

Testing: unit test added

Documentation: readme updated with:

Uri

Uri(uri_string)

Parses a Uniform Resource Identifier (URI) string and extracts its components as an object.
This URI object includes properties for the URI’s domain, path, fragment, port, query, scheme, user info, username, and password.

original, domain, scheme and path are always present, other are present only if they have corresponding values.

uri_string is a string.

• Uri("http://www.example.com")

results in

  "original": "http://www.example.com",
  "scheme":   "http",
  "domain":   "www.example.com",
  "path":     "",

• Uri("http://myusername:[email protected]:80/foo.gif?key1=val1&key2=val2#fragment")

results in

  "path":      "/foo.gif",
  "fragment":  "fragment",
  "extension": "gif",
  "password":  "mypassword",
  "original":  "http://myusername:[email protected]:80/foo.gif?key1=val1&key2=val2#fragment",
  "scheme":    "http",
  "port":      80,
  "user_info": "myusername:mypassword",
  "domain":    "www.example.com",
  "query":     "key1=val1&key2=val2",
  "username":  "myusername",

[michalpristas]

@djaglowski i moved implementation of the uri parser to stanza uri parser with a conditional for current behavior and new semconv aligned behavior. please let me know if this is ok or we should extract even more outside

[djaglowski]

@djaglowski i moved implementation of the uri parser to stanza uri parser with a conditional for current behavior and new semconv aligned behavior. please let me know if this is ok or we should extract even more outside

The implementation looks good to me but in the past we've avoided making ottl dependent on stanza by moving code to a shared package. e.g. https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/internal/coreinternal/parseutils

[michalpristas]

will move it somewhere there, thanks

[michalpristas]

@djaglowski moved it to coreinternal hope it's better now