Recalbox support

-Added McAirpos support and as game system on Recalbox
-Added quick installation script for Recalbox
-Silenced game launch and background text, put into /tmp/McAirpos.log instead
-Added verbose argument option for old verbose launch with text to stdout

McAirpos/Recalbox/es_systems.cfg_MakeCode_RB

@@ -0,0 +1,17 @@
+  <system>
+    <fullname>MakeCode Arcade</fullname>
+    <name>MakeCode</name>
+    <path>/recalbox/share/roms/makecode</path>
+    <extension>.elf .ELF</extension>
+    <command>/usr/bin/launCharc %ROM%</command>
+    <platform>makecode</platform>
+    <theme>makecode</theme>
+    <emulators>
+      <emulator name="launCharc">
+        <cores>
+          <core priority="1">launCharc</core>
+        </cores>
+      </emulator>
+    </emulators>
+  </system>
+</systemList>

McAirpos/Recalbox/makecode/custom.xml

@@ -0,0 +1,53 @@
+<theme>
+	<formatVersion>4</formatVersion>
+
+	<view name="system">
+		<text name="info1" extra="true">
+			<text>Developer : Microsoft</text>
+		</text>
+		<text name="info2" extra="true">
+			<text>Initial release : January 6, 2020</text>
+		</text>
+		<text name="info3" extra="true">
+			<text>Website : http://arcade.makecode.com</text>
+		</text>
+		<text name="info4" extra="true">
+			<text>Written in : STS/C++</text>
+		</text>
+		<text name="info5" extra="true">
+			<text>"Microsoft MakeCode Arcade is a web-based beginner-friendly</text>
+		</text>
+		<text name="info6" extra="true">
+			<text>the hardware of arcade game systems in software</text>
+			<text>code editor to create retro arcade games ...</text>
+		</text>
+		<text name="info7" extra="true">
+			<text>... with MakeCode, you can either use blocks[, Python]</text>
+		</text>
+		<text name="info8" extra="true">
+			<text>or JavaScript to build your program ..."</text>
+		</text>
+		<text name="info9" extra="true">
+			<text>Video: "... 160x120 screen showing 16 colors ..."</text>
+		</text>
+		<text name="info10" extra="true">
+			<text>Sound: "... 4-channel retro-appropriate sound system ..."</text>
+		</text>
+
+	</view>
+
+	<view name="system, basic, detailed">
+		<image name="band1" extra="true">
+			<color>FF69B4</color>
+		</image>
+		<image name="band2" extra="true">
+			<color>36D787</color>
+		</image>
+		<image name="band3" extra="true">
+			<color>4B77BE</color>
+		</image>
+		<image name="band4" extra="true">
+			<color>BE90D4</color>
+		</image>
+	</view>
+</theme>