Deprecate `str::from_utf8_owned`

Use `String::from_utf8` instead

[breaking-change]
Deprecate `str::from_chars`

Use `String::from_chars` instead

[breaking-change]
Deprecate `str::from_char`

Use `String::from_char` or `.to_str` instead

[breaking-change]
Deprecate str::from_byte

Replaced by `String::from_byte`

[breaking-change]
Deprecate `str::from_utf16`

Use `String::from_utf16` instead

[breaking-change]
Deprecate `str::from_utf16_lossy`

Use `String::from_utf16_lossy` instead.

[breaking-change]
Deprecate `str::from_utf8_lossy`

Use `String::from_utf8_lossy` instead

[breaking-change]
Fix errors