Add types for rqrcode gem

RQRCode is a library for creating and rendering QR codes into various formats.
It has a simple interface with all the standard QR code options.

refs: https://github.com/whomwah/rqrcode

.gitmodules

@@ -202,3 +202,6 @@
 [submodule "gems/recaptcha/5.15/_src"]
 	path = gems/recaptcha/5.15/_src
 	url = https://github.com/ambethia/recaptcha.git
+[submodule "gems/rqrcode/2.2/_src"]
+	path = gems/rqrcode/2.2/_src
+	url = https://github.com/whomwah/rqrcode.git

gems/rqrcode/2.2/_scripts/test

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# Exit command with non-zero status code, Output logs of every command executed, Treat unset variables as an error when substituting.
+set -eou pipefail
+# Internal Field Separator - Linux shell variable
+IFS=$'\n\t'
+# Print shell input lines
+set -v
+
+# Set RBS_DIR variable to change directory to execute type checks using `steep check`
+RBS_DIR=$(cd $(dirname $0)/..; pwd)
+# Set REPO_DIR variable to validate RBS files added to the corresponding folder
+REPO_DIR=$(cd $(dirname $0)/../../..; pwd)
+# Validate RBS files, using the bundler environment present
+bundle exec rbs --repo $REPO_DIR -r rqrcode:2.2 -r chunky_png validate --silent
+
+cd ${RBS_DIR}/_test
+# Run type checks
+bundle exec steep check
+
+$(git rev-parse --show-toplevel)/bin/check-untyped-call.rb

gems/rqrcode/2.2/_test/Steepfile

@@ -0,0 +1,13 @@
+D = Steep::Diagnostic
+
+target :test do
+  check "."
+  signature "."
+
+  repo_path "../../../"
+  library "rqrcode"
+
+  library "chunky_png"
+
+  configure_code_diagnostics(D::Ruby.all_error)
+end

gems/rqrcode/2.2/_test/test.rb

@@ -0,0 +1,47 @@
+# Write Ruby code to test the RBS.
+# It is type checked by `steep check` command.
+
+require "rqrcode"
+
+qr = RQRCode::QRCode.new("https://kyan.com")
+
+puts qr.to_s
+
+qrcode = RQRCode::QRCode.new("http://github.com/")
+
+# NOTE: showing with default options specified explicitly
+svg = qrcode.as_svg(
+  color: "000",
+  shape_rendering: "crispEdges",
+  module_size: 11,
+  standalone: true,
+  use_path: true
+)
+
+qrcode = RQRCode::QRCode.new("http://github.com/")
+
+# NOTE: showing with default options specified explicitly
+png = qrcode.as_png(
+  bit_depth: 1,
+  border_modules: 4,
+  color_mode: ChunkyPNG::COLOR_GRAYSCALE,
+  color: "black",
+  file: nil,
+  fill: "white",
+  module_px_size: 6,
+  resize_exactly_to: false,
+  resize_gte_to: false,
+  size: 120
+)
+
+IO.binwrite("/tmp/github-qrcode.png", png.to_s)
+
+
+qrcode = RQRCode::QRCode.new("http://github.com/")
+
+# NOTE: showing with default options specified explicitly
+ansi = qrcode.as_ansi(
+  light: "\033[47m", dark: "\033[40m",
+  fill_character: "  ",
+  quiet_zone_size: 4
+)

gems/rqrcode/2.2/rqrcode.rbs

@@ -0,0 +1,14 @@
+module RQRCode
+  class QRCode
+    type level = :l | :m | :q | :h
+    type mode = :number | :alphanumeric | :byte_8bit | :kanji
+    type segment = { data: String, mode: mode }
+
+    def initialize: (String) -> void
+    def as_svg: (?offset: Integer, ?fill: String | :white | :currentColor, ?color: String | :black | :currentColor, ?module_size: Integer, ?shape_rendering: "auto" | "optimizeSpeed" | "crispEdges" | "geometricPrecision", ?standalone: bool, ?use_path: bool, ?viewbox: bool, ?svg_attributes: Hash[untyped, untyped]) -> String
+    def as_png: (?fill: untyped, ?color: untyped, ?size: Integer, ?border_modules: Integer, ?module_px_size: Integer, ?border: Integer, ?resize_exactly_to: bool, ?resize_gte_to: bool) -> ChunkyPNG::Image
+              | (file: untyped, ?fill: untyped, ?color: untyped, ?color_mode: Integer, ?bit_depth: Integer, ?interlace: bool, ?compression: untyped, ?size: Integer, ?border_modules: Integer, ?module_px_size: Integer, ?border: Integer, ?resize_exactly_to: bool, ?resize_gte_to: bool) -> ChunkyPNG::Image
+    def as_ansi: (?light: String, ?dark: String, ?fill_character: String, ?quiet_zone_size: Integer) -> String
+    def to_s: () -> String
+  end
+end