commit 6d98fd5

add some things to the todo file

 1@@ -1,3 +1,30 @@
 2-implement .POSIX
 3-handle recursive ${MAKE} as subninja
 4+projects it can build (x means it builds)
 5+ shinobi x
 6+ musl x
 7+ sndio x
 8+ zstd
 9+ linux
10+
11+targets:
12+ .POSIX
13+ .SECONDEXPANSION (how?)
14+ a lot more, these are just high-priority
15+
16+functions:
17+ $(findstring ...)
18+ $(strip ...)
19+ $(join ...)
20+ $(origin ...)
21+ $(foreach ...)
22+ again, there's more, these are just high-priority
23+
24+directives
25+ define
26+ endef
27+ undefine
28+ export 
29+ unexport
30+
31+
32+
33