Extract store from ARC2

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.github/workflows/CodingStyles.yml

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+name: CodingStyles
+
+on: push
+
+jobs:
+    tests:
+        name: Coding Styles
+        runs-on: ubuntu-latest
+
+        strategy:
+            fail-fast: true
+            matrix:
+                php:
+                    - 8.0
+
+        steps:
+            -   name: Checkout
+                uses: actions/checkout@v2
+
+            -   name: Install PHP
+                uses: shivammathur/setup-php@v2
+                with:
+                    php-version: ${{ matrix.php }}
+                    coverage: xdebug
+                    ini-values: memory_limit=1G
+                    tools: cs2pr
+
+            -   name: Install Composer dependencies
+                run: composer install --no-progress --no-suggest --prefer-dist --optimize-autoloader
+
+            -   name: Coding styles
+                run: php vendor/bin/php-cs-fixer fix --verbose --dry-run --format=checkstyle | cs2pr

.github/workflows/Tests.yml

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+name: Tests
+
+on: push
+
+jobs:
+    linux-tests:
+        name: Linux-Tests with PHP ${{ matrix.php-versions }}
+        runs-on: ubuntu-latest
+
+        env:
+            DB_ADAPTER: pdo
+            DB_PDO_PROTOCOL: sqlite
+            DB_SQLITE_IN_MEMORY: true
+
+        strategy:
+            fail-fast: true
+            matrix:
+                php:
+                    - 8.0
+
+        steps:
+            -   name: Checkout
+                uses: actions/checkout@v2
+
+            -   name: Install PHP
+                uses: shivammathur/setup-php@v2
+                with:
+                    php-version: ${{ matrix.php }}
+                    coverage: xdebug
+                    ini-values: memory_limit=1G
+
+            -   name: Install Composer dependencies
+                run: composer install --no-progress --prefer-dist --optimize-autoloader
+
+            -   name: Tests
+                run: vendor/bin/phpunit -v
+
+    windows-tests:
+        name: Windows-Tests with PHP ${{ matrix.php-versions }}
+        runs-on: windows-2019
+
+        strategy:
+            fail-fast: true
+            matrix:
+                php-versions: ['8.0']
+
+        steps:
+            -   name: Checkout
+                uses: actions/checkout@v2
+
+            -   name: Install PHP
+                uses: shivammathur/setup-php@v2
+                with:
+                    php-version: ${{ matrix.php-versions }}
+                    ini-values: memory_limit=1G,
+                    extensions: pdo_sqlite
+
+            -   name: Install Composer dependencies
+                run: composer update --no-progress --prefer-dist --optimize-autoloader
+
+            -   name: Tests
+                run: vendor/bin/phpunit --exclude linux

.gitignore

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+composer.lock
+html
+.phpunit.result.cache
+.php_cs.cache
+vendor

.php_cs

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+<?php
+
+return PhpCsFixer\Config::create()
+    ->setRules([
+        '@Symfony' => true,
+        '@Symfony:risky' => true,
+        'array_indentation' => true,
+        'phpdoc_summary' => false,
+    ])
+    ->setRiskyAllowed(true)
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+        ->in(__DIR__.'/src')
+        ->in(__DIR__.'/tests')
+        ->name('*.php')
+        ->append([__FILE__])
+    );

.scrutinizer.yml

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+build:
+    nodes:
+        coverage:
+            tests:
+                override:
+                    -   command: XDEBUG_MODE=coverage php vendor/bin/phpunit --coverage-clover coverage/clover.xml
+                        coverage:
+                            file: coverage/clover.xml
+                            format: clover
+            environment:
+                php:
+                    version: 8.0