Added extensions: lz4, lzf and zstd

php_modules/lz4/README.md

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+# lz4
+
+This extension allows LZ4.
+
+Documentation for LZ4 can be found at » https://github.com/Cyan4973/lz4.
+
+| Platform | Url                                                              |
+|----------|------------------------------------------------------------------|
+| GitHub   | https://github.com/kjdev/php-ext-lz4                             |

php_modules/lz4/build.yml

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+---
+
+# Available Jinja2 variables:
+# ---------------------------
+# * {{ php_all_versions }}:  Array of all PHP versions
+
+
+all:
+  type: git
+  git_url: https://github.com/kjdev/php-ext-lz4
+  git_ref: $(git tag | grep -E '^[.0-9]+$' | sort -V | tail -1)
+  configure: --enable-lz4 --with-lz4-includedir=/usr
+  build_dep: [liblz4-dev]
+  run_dep: [liblz4-1]

php_modules/lz4/options.yml

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+---
+
+# The name of the module
+name: lz4
+
+# Exclude module build/installation for the following PHP versions
+exclude: [5.2, 5.3, 5.4, 5.5, 5.6]
+
+# In order for this module to built correctly against all dependencies,
+# the following modules must have been built first.
+depends_build:
+  - apcu
+
+# In order for this module to function correctly,
+# the following modules must be loaded before.
+depends_load: []
+
+# If the following PHP modules are loaded, this module will not behave as expected.
+conflicts_load: []
+
+# Enable this module by default via php.ini for PHP cli command?
+enabled_php_cli: true
+
+# Enable this module by default via php.ini for PHP-FPM?
+enabled_php_fpm: true

php_modules/lz4/test.yml

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+---