megadriv.xml: Added 21 working items. (#14063)

New working software list additions (megadriv.xml)
--------------------------------------------
Cave Story - Doukutsu Monogatari (v0.8.5, English) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Chinese) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Finnish) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, French) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, German) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Italian) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Japanese) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Korean) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Portuguese Brazil) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Portuguese) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Russian) [Andrew DeRosier]
Cave Story - Doukutsu Monogatari (v0.8.5, Spanish) [Andrew DeRosier]
Devwill Too MD [no-intro]
Devwill Too MD (Portuguese) [no-intro]
Devwill Too MD (English, digital release) [no-intro]
Devwill Too MD (Portuguese, digital release) [no-intro]
Devwill Too MD (demo v1) [no-intro]
Devwill Too MD (demo v2) [no-intro]
Devwill Too - Prologue [no-intro]
Kirito - The Game (demo 1.1) [Tulfared]
Sovietborgs (demo) [Retro Sumus]

Author: ArcadeShadow