pgpool: Import pgindent.

Import pgindent.

Import PostgreSQL's pgindent.

This commit not only imports PostgreSQL's pgindent, but generates the
important file: typedefs.list. For this purpose followings are added:

- README.pgpool: How to generate typedefs.list.

- doxygen.list: Pgpool-II's typedefs extracted by doxygen. Plus
manually added typedefs that were not detected by doxygen.

- enums.list: Pgpool-II's enums manually extracted from source code.

- exclude_files: files that should not be touched pgindent.

- run_pgindent: handy script to run pgindent. Should be run at src
directory.

- typedefs.list.PostgreSQL: PostgreSQL's typedefs. To prepare for that
doxygen misses some typedefs.

- make_typedefs.list: handy script to generate typedefs.list.

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=fd190f7eab778314138c7595b3aaa71c960aaa2f

Modified Files
--------------
src/tools/pgindent/README | 171 +
src/tools/pgindent/README.pgpool | 16 +
src/tools/pgindent/doxygen.list | 476 +++
src/tools/pgindent/enums.list | 63 +
src/tools/pgindent/exclude_file_patterns | 65 +
src/tools/pgindent/exclude_files | 2 +
src/tools/pgindent/make_typedefs.list | 2 +
src/tools/pgindent/perltidyrc | 17 +
src/tools/pgindent/pgindent | 463 +++
src/tools/pgindent/pgindent.man | 43 +
src/tools/pgindent/pgperltidy | 12 +
src/tools/pgindent/run_pgindent | 5 +
src/tools/pgindent/typedefs.list | 4532 +++++++++++++++++++++++++++
src/tools/pgindent/typedefs.list.PostgreSQL | 4344 +++++++++++++++++++++++++
14 files changed, 10211 insertions(+)