PACKAGE/DEFCONFIG: add sdlbook app (#99)

with miyoo&optimization changes

board/miyoo/main/gmenu2x/sections/applications/sdlbook

@@ -0,0 +1,5 @@
+title=SDLbook
+description=DJVU/PDF/EPUB viewer & more
+exec=/usr/bin/sdlbook
+manual=/mnt/manuals/sdlbook.man.txt
+selectordir=/mnt/books

board/miyoo/main/manuals/sdlbook.man.txt

@@ -0,0 +1,15 @@
+SDLbook hotkeys:
+-----------------------
+A = accept
+B = cancel
+UP = scroll up
+DOWN = scroll down
+L2/R2+UP = scroll fast upwards
+L2/R2+DOWN = scroll fast downwards
+L1 = scroll one page up
+R1 = scroll one page down
+X = zoom in page
+Y = zoom out page
+SELECT = jump to inserted page number 
+RESET = quit app
+START = show HELP screen

board/miyoo/scripts/genimage.sh

@@ -63,6 +63,8 @@ convert board/miyoo/miyoo-splash.png -pointsize 12 -fill white -annotate +10+230
 # Workaround for build apss and configs being placed in /usr/ after img generation (as we use MAIN)
 test -d "${BINARIES_DIR}/gmenu2x" && cp -r "${BINARIES_DIR}/gmenu2x/" "${BINARIES_DIR}/main/"
 test -d "${BINARIES_DIR}/emus" && cp -r "${BINARIES_DIR}/emus/" "${BINARIES_DIR}/main/"
+test -d "${BINARIES_DIR}/apps" && cp -r "${BINARIES_DIR}/apps/" "${BINARIES_DIR}/main/"
+test -d "${BINARIES_DIR}/games" && cp -r "${BINARIES_DIR}/games/" "${BINARIES_DIR}/main/"
 if test -d "${BINARIES_DIR}/retroarch"; then
 	rsync -avzh "${BINARIES_DIR}/retroarch/" "${BINARIES_DIR}/main/.retroarch/"
 	## Generate list of cores to be used