This decision was made to reduce the complexity of using .include whilst
juggling with tools/scaninc and tools/preproc:
- tools/scaninc doesn't apply the proper search rules for .include (it
  assumes #include behavior). In particular, it doesn't consider paths
  starting from $PWD, and doesn't scan the included files as a result.
- .include had to be processed before #include by preproc in many cases,
  as code was being included that had to be preprocessed by CPP (think
  of #define). This contradicts standard GCC behavior.

To make include paths consistent across the asm/ data/ and src/
directories, the following files were moved:
- constants/ → include/asm/constants/
- asm/macros/ → include/asm/macros/
- asm/macros.inc → include/asm/macros.inc
- include/macros/m4a.inc → include/asm/macros/m4a.inc

As part of the necessary changes for this to work, the scaninc method in
the makefile was improved to generate .d files that don't choke when
files are missing.

* Labeled more symbols

* Fixed comment typo

* Renamed some functions

* Added item icons/Hiragana to charmap

* Use color formatting charmap macros

* Removed redundant text formatting macros

* Sync tools/ directory with pokeemerald

We really ought to have a central repository for this mess

* Make incremental builds faster

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* Disassemble some more tables and the first graphic

* decomp rest of main_menu

* move some main menu data over

* decomp some more wonder mail

* decomp the dungeon dialogue scene switches

* more wonder mail

* consolidate struct_802F204

* another wonder mail func

* more wonder mail

* slight cleanup

* split adventure log menu out and decompile

* add most adventure log matchings w/ 2 nonmatchings and move some relevant data

* more work on other menus

* fully decomp debug stuff around 203B3F0

* more debug menu work

* fix CreatePartnerSelectionMenu nonmatch

* move more data and clean some data up