Rename PHP PECL delivered packages

Currently there’s 3 types of PHP extensions

- PECL https://pecl.php.net/ binary extensions - suggestion to add “pear” to name like php7-pecl-xdebug

- PEAR https://pear.php.net/ source code - already has prefix https://pkgs.alpinelinux.org/packages?name=**pear**&branch=edge&repo=community&arch=x86\_64

• few extensions that hosts on github, most of time PECL type that not tracked at PECL

so naming could follow following pattern

- php7-* “core” extensions, needs to add “bundled” package

- php7-pecl-{pkgname} packages sourced from https://pecl.php.net/

- pear one already fine

• php7-contrib-event - or find other label

(from redmine: issue id 9277, created on 2018-08-18, closed on 2019-06-19)

• Relations:
  • relates #9291 (closed)