build: large address aware variant of 32-bit spice.exe (#298)

## Link to GitHub Issue, if one exists
Fixes #280

## Description of change
Introduce a variant of 32bit spice.exe that is large address aware.

## Compiling
👍 

## Testing
Minimal testing has been done to see if the LAA variant can boot
existing 32 bit games.

src/spice2x/build_all.sh

@@ -60,7 +60,7 @@ DIST_ENABLE=1
 DIST_FOLDER="./dist"
 DIST_NAME="spice2x-$(date +%y)-$(date +%m)-$(date +%d).zip"
 DIST_COMMENT=${DIST_NAME}$'\n'"$GIT_BRANCH - $GIT_HEAD"$'\nThank you for playing.'
-TARGETS_32="spicetools_stubs_kbt spicetools_stubs_kld spicetools_cfg spicetools_spice"
+TARGETS_32="spicetools_stubs_kbt spicetools_stubs_kld spicetools_cfg spicetools_spice spicetools_spice_laa"
 TARGETS_64="spicetools_stubs_kbt64 spicetools_stubs_kld64 spicetools_stubs_nvEncodeAPI64 spicetools_stubs_nvcuvid spicetools_stubs_nvcuda spicetools_spice64"
 
 # determine build type
@@ -183,6 +183,7 @@ rm -rf ${OUTDIR}
 mkdir -p ${OUTDIR}
 #mkdir -p ${OUTDIR}/stubs/32
 mkdir -p ${OUTDIR}/stubs/64
+mkdir -p ${OUTDIR}/extras/largeaddressaware
 if false # ((DEBUG > 0))
 then
     # debug files
@@ -203,6 +204,7 @@ else
     # release files
     cp ${BUILDDIR_32}/spicetools/spicecfg.exe ${OUTDIR} 2>/dev/null
     cp ${BUILDDIR_32}/spicetools/32/spice.exe ${OUTDIR} 2>/dev/null
+    cp ${BUILDDIR_32}/spicetools/32/spice_laa.exe ${OUTDIR}/extras/largeaddressaware/spice.exe 2>/dev/null
     #cp ${BUILDDIR_32}/spicetools/32/kbt.dll ${OUTDIR}/stubs/32 2>/dev/null
     #cp ${BUILDDIR_32}/spicetools/32/kld.dll ${OUTDIR}/stubs/32 2>/dev/null
     cp ${BUILDDIR_64}/spicetools/64/spice64.exe ${OUTDIR} 2>/dev/null