BgIcicle OK and mostly documented (#180)

* remove ZAPD submodule

* git subrepo clone https://github.com/zeldaret/ZAPD.git tools/ZAPD

subrepo:
  subdir:   "tools/ZAPD"
  merged:   "ca229f19"
upstream:
  origin:   "https://github.com/zeldaret/ZAPD.git"
  branch:   "master"
  commit:   "ca229f19"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"

* git subrepo clone https://github.com/simonlindholm/decomp-permuter.git tools/decomp-permuter

subrepo:
  subdir:   "tools/decomp-permuter"
  merged:   "1e4b85a7"
upstream:
  origin:   "https://github.com/simonlindholm/decomp-permuter.git"
  branch:   "main"
  commit:   "1e4b85a7"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"

* Remove asm-differ

* git subrepo clone https://github.com/simonlindholm/asm-differ.git tools/asm-differ

subrepo:
  subdir:   "tools/asm-differ"
  merged:   "eaf72269"
upstream:
  origin:   "https://github.com/simonlindholm/asm-differ.git"
  branch:   "master"
  commit:   "eaf72269"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"

* remove asm-processor

* git subrepo clone https://github.com/simonlindholm/asm-processor.git tools/asm-processor

subrepo:
  subdir:   "tools/asm-processor"
  merged:   "85288fcd"
upstream:
  origin:   "https://github.com/simonlindholm/asm-processor.git"
  branch:   "master"
  commit:   "85288fcd"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"

* remove .gitmodules file

* Update REAMDE

* OK

* Import data

* Begin naming

* Delete asm references

* Main type enum

* Rename in functions.txt

* Review changes

Co-authored-by: angie <angheloalf95@gmail.com>

linker_scripts/object_script.txt

@@ -490,6 +490,10 @@ D_06001C60 = 0x06001C60;
 D_06000D78 = 0x06000D78;
 D_06000C80 = 0x06000C80;
 
+/* z_bg_icicle */
+D_060000D0 = 0x060000D0;
+D_06000294 = 0x06000294;
+
 /* z_obj_ghaka */
 D_06001A20 = 0x06001A20;
 D_06001980 = 0x06001980;