NoIssue: Add some String generators

src/main/java/com/r35157/libs/random/RandomValueGeneratorString.java

@@ -0,0 +1,7 @@
+package com.r35157.libs.random;
+
+import org.jetbrains.annotations.NotNull;
+
+public interface RandomValueGeneratorString {
+    @NotNull String getSomeStringAlphaNumericOnly(int length);
+}