Add Uri::buildUrl() method

Builds url with given root url and parts of url

docs/Static-methods/Uri.md

@@ -0,0 +1,47 @@
+# Meritoo Common Library
+
+Common and useful classes, methods, exceptions etc.
+
+# Uri
+
+> Useful methods related to uri
+
+Class: `Meritoo\Common\Utilities\Uri`
+File: `src/Utilities/Uri.php`
+
+### buildUrl(string, string ...): string
+
+> Builds url with given root url and parts of url (concatenates them using "/")
+
+##### Arguments
+
+- `string $rootUrl` - Protocol and domain (or domain only)
+- `string ...$urlParts` - Parts of url that will be concatenated with the rool url by "/"
+
+##### Examples
+
+1)
+
+  - rootUrl: `"http://my.example"`
+  - urlParts: `""` (an empty string)
+  - result: `"http://my.example"`
+
+2)
+
+  - rootUrl: `"http://my.example"`
+  - urlParts: `"/test", "/123"`
+  - result: `"http://my.example/test/123"`
+
+# More
+
+1. [Base test case (with common methods and data providers)](../Base-test-case.md)
+2. [Collection of elements](../Collection/Collection.md)
+3. [Templates](../Collection/Templates.md)
+4. [Exceptions](../Exceptions.md)
+5. [Static methods](../Static-methods.md)
+   1. [Arrays](Arrays.md)
+   2. [Regex](Regex.md)
+   3. [**Uri**](Uri.md)
+6. [Value Objects](../Value-Objects.md)
+
+[‹ Back to `Readme`](../../README.md)