move tide-only lib files to tide directory

diff --git a/src/lib/job.c b/src/tide/job.c
similarity index 100%
rename from src/lib/job.c
rename to src/tide/job.c

diff --git a/src/lib/mouse.c b/src/tide/mouse.c
similarity index 100%
rename from src/lib/mouse.c
rename to src/tide/mouse.c

diff --git a/src/lib/range.c b/src/tide/range.c
similarity index 100%
rename from src/lib/range.c
rename to src/tide/range.c

diff --git a/src/lib/shortcuts.c b/src/tide/shortcuts.c
similarity index 100%
rename from src/lib/shortcuts.c
rename to src/tide/shortcuts.c

diff --git a/src/lib/xpty.c b/src/tide/xpty.c
similarity index 100%
rename from src/lib/xpty.c
rename to src/tide/xpty.c