Proposal: Using phpro/grumphp for local quality check

design-documents/grumphp_check.md

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+# Using phpro/grumphp for local quality check
+
+
+## Why?
+As a developer, you need fast feedback if you working on a pull request. 
+Currently, you get feedback from  Travis after hours or days. With GrumPHP, the code can be quickly checked on every commit.
+
+## Benefits:
+ - Quik feedback for developers 
+-  Better commits (fewer `fix phpcs style` commits)
+
+Sample Config:
+```yml
+parameters:
+    bin_dir: "./vendor/bin"
+    git_dir: "."
+    hooks_dir: ~
+    hooks_preset: local
+    stop_on_failure: false
+    ignore_unstaged_changes: false
+    ascii:
+        succeeded: ~
+        failed: ~
+    tasks:
+        phpversion:
+            project: '7.1'
+        xmllint:
+            ignore_patterns: ["src/dev"]
+        yamllint:
+            ignore_patterns: ["src/dev"]
+        securitychecker:
+            lockfile: ./src/composer.lock
+            format: ~
+            end_point: ~
+            timeout: ~
+            run_always: false
+        git_blacklist:
+            keywords:
+            - "die("
+            - "var_dump("
+            - "print_r("
+            - "var_export("
+            - "exit;"
+            whitelist_patterns:
+            - /^src\/app\/(.*)/
+            triggered_by: ['php']
+        phpmnd:
+            directory: ./src/app/code
+            whitelist_patterns: []
+            exclude: []
+            exclude_name: []
+            exclude_path: []
+            extensions: []
+            hint: false
+            ignore_numbers: []
+            ignore_strings: []
+            strings: false
+            triggered_by: ['php']
+        phpcs:
+            standard: "./src/dev/tests/static/framework/Magento/ruleset.xml"
+            severity: ~
+            error_severity: ~
+            warning_severity: 6
+            tab_width: ~
+            report: summary
+            report_width: ~
+            whitelist_patterns:
+            - /^src\/app\/code\/(.*)/
+            encoding: ~
+            ignore_patterns: []
+            sniffs: []
+            triggered_by: [php]
+        phpunit:
+            config_file: ./dev/tests/phpunit-no-coverage.xml
+            testsuite: ~
+            group: []
+            always_execute: false
+```