Add tests for MD_STD_IN::sanitize_url() and ensure it supports rewriting

unencoded cyrillic inputs

Close #7

phpunit.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
+    backupGlobals="false" backupStaticAttributes="false"
+    beStrictAboutChangesToGlobalState="true" beStrictAboutOutputDuringTests="false" beStrictAboutResourceUsageDuringSmallTests="true" beStrictAboutTodoAnnotatedTests="true" beStrictAboutCoversAnnotation="false"
+    bootstrap="tests/bootstrap.php"
+    cacheResult="false"
+    colors="true"
+    convertErrorsToExceptions="true" convertDeprecationsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true"
+    enforceTimeLimit="true"
+    failOnWarning="true"
+    forceCoversAnnotation="false"
+    printerClass="Codedungeon\PHPUnitPrettyResultPrinter\Printer" processIsolation="true"
+    stopOnError="true" stopOnFailure="true" stopOnIncomplete="true" stopOnSkipped="true" stopOnRisky="true"
+    timeoutForSmallTests="1" timeoutForMediumTests="10" timeoutForLargeTests="60"
+    verbose="true">
+</phpunit>