Commit 00e10e8

What's new in 8.6.0

Merge to

[upstream commit 242a186f1fbf](https://github.com/googlei18n/libphonenumber/commit/242a186f1fbf);

relevant code changes:

- Removing `leading_zero_possible` from the metadata and all the places it is

referenced in the build and prod code. Will be removed from the metadata

proto itself in a subsequent release. This should not affect users of the

library - the only place it was used was `format_in_original_format`, and only

initially to try and avoid modifying the input number by removing/adding

digits inadvertently. Now this is checked at the end of the method anyway.

However slight formatting differences with this method on invalid numbers

starting with 0s may be noticed in some countries.

- Updated the documentation for the `is_number_geographical` API.

- Small comment improvements for `parse()` method to point users at

`keep_raw_input` parameter.

- Added a new enum for `CountryCodeSource` called `UNSPECIFIED`. This is used as a

default value, and will be returned if someone calls `parse(keep_raw_input=False)` and then

`.country_code_sourc` on the result. If users want an actual value for this

then they should call `parse(keep_raw_input=True)` instead; the values that were

previously returned after calling this method will not change.

- Deletion of the possible number pattern in the phonemetadata.proto file and

all generated code. This has not been used for a long time.

[upstream commit 52cff9d8837f](https://github.com/googlei18n/libphonenumber/commit/52cff9d8837f);