update cc code: tokenpool-client, tokenpool-master, jobserver-fifo

[milahu]

currently, the cc folder has an old version of stefanb2's topic-tokenpool-master branch
see also https://github.com/milahu/ninja/tree/stefanb2/topic-tokenpool-master-old

the new versions should be merged:

• Add GNU make jobserver client support ninja-build/ninja#1140
  • https://github.com/stefanb2/ninja/tree/topic-issue-1139-squashed
  • https://github.com/milahu/ninja/tree/stefanb2/topic-tokenpool-client
• Add GNU make jobserver master support ninja-build/ninja#2260
  • https://github.com/stefanb2/ninja/tree/topic-issue-1139-part-2-tokenpool-master
  • https://github.com/milahu/ninja/tree/stefanb2/topic-tokenpool-master
• Add GNU make jobserver style "fifo" support ninja-build/ninja#2263
  • https://github.com/stefanb2/ninja/tree/topic-issue-1139-part-3-jobserver-fifo
  • https://github.com/milahu/ninja/tree/stefanb2/topic-jobserver-fifo

merged commits

git log --format=$'%H\n%s\n' -- cc/ | tac

ninja-build/ninja/pull/1140

cc: init from upstream https://github.com/ninja-build/ninja
5ea78ff
add COPYING

cc: Add GNU make jobserver client support
0ab7545 from ninja-build/ninja@3e04d21

cc: Add TokenPool monitoring to SubprocessSet::DoWork()
21a6390 from ninja-build/ninja@5c8dc53

cc: Ignore jobserver when -jN is forced on command line
864c5d3 from ninja-build/ninja@a6eec5c

cc: Honor -lN from MAKEFLAGS
25cb1ad from ninja-build/ninja@3d15060

cc: Use LinePrinter for TokenPool messages
3331c4c from ninja-build/ninja@1157e43

cc: Prepare PR for merging
f9d9469 from ninja-build/ninja@6100863

cc: Add tests for TokenPool
1be7cb3 from ninja-build/ninja@008bc6e

Add tests for subprocess module
ninja-build/ninja@cf02adc
not merged

Add tests for build module
ninja-build/ninja@f99d747
not merged

cc: Add Win32 implementation for GNUmakeTokenPool
178bf97 from ninja-build/ninja@71ad7da

cc: Prepare PR for merging - part II
b92c1a2 from ninja-build/ninja@05d39cb

ninja-build/ninja/pull/2260

cc: Rename TokenPool::Setup() to SetupClient()
343b7de from ninja-build/ninja@6ec8fb0

cc: Add TokenPool::SetupMaster() method
2b498af from ninja-build/ninja@89e4aef

Add command line option -m/--tokenpool-master
ninja-build/ninja@0ec8c4a
not merged

cc: Implement GNUmakeTokenPool::SetupMaster()
5a21c33 from ninja-build/ninja@8d21910

cc: Implement GNUmakeTokenPool*::CreatePool()
1e6f188 from ninja-build/ninja@6602155

cc: Add tests for TokenPool::SetupMaster()
573c9bb from ninja-build/ninja@bee56b6

ninja-build/ninja/pull/2263

Add GNU make jobserver fifo style client support
ninja-build/ninja@e615e63
TODO merge

Add optional argument to -m/--tokenpool-master
ninja-build/ninja@66350c0
not merged

Add GNU make jobserver fifo style master support
ninja-build/ninja@c9e21db
TODO merge

other commits

cc: set -j in MAKEFLAGS
a97d5ad

cc: add test
a22030e

cc: add debug prints
4938d37

cc: use token value in acquire + release
0d1eb00

cc: fix test
a36c159

cc: mv COPYING license.txt
5d003bd

cc: rename ReturnToken -> ReleaseToken
fc83de9

cc: expose low-level interface
4c9900d

cc: test low-level interface
62c2c68

cc: add test/test.sh
9c06681

cc: test: explain low vs high level
82c5362

cc: test: tokens_ -> tokenpool_
83c0fca

cc: test: refactor
d119ba3

cc: test: add cleanup
4465d58

cc: test: %i -> %li
78e7ed8

cc: fix warnings
d598c4d

cc: test: job_count
30b573d

cc: add readme
4eb559a