Extract compression functions into a new library.

/src/ext/keccak-tiny/libkeccak-tiny.lib

# /src/lib

/src/lib/libtor-compress.a

/src/lib/libtor-compress-testing.a

/src/lib/libtor-ctime.a

/src/lib/libtor-ctime-testing.a

/src/lib/libtor-err.a

# All static libraries used to link tor.

TOR_INTERNAL_LIBS = \

	src/or/libtor-app.a \

        src/lib/libtor-compress.a \

	$(TOR_CRYPTO_LIBS) \

	$(TOR_UTIL_LIBS) \

	src/common/libor-event.a \

# and tests)

TOR_INTERNAL_TESTING_LIBS = \

	src/or/libtor-app-testing.a \

        src/lib/libtor-compress-testing.a \

	$(TOR_CRYPTO_TESTING_LIBS) \

	$(TOR_UTIL_TESTING_LIBS) \

	$(LIBKECCAK_TINY) \

	$(LIBDONNA) \

	src/common/libor-event-testing.a \

	src/trunnel/libor-trunnel-testing.a \

	src/trace/libor-trace.a

LIBOR_CRYPTO_A_SRC = \

  src/common/aes.c		\

  src/common/buffers_tls.c	\

  src/common/compress.c	\

  src/common/compress_lzma.c	\

  src/common/compress_none.c	\

  src/common/compress_zlib.c	\

  src/common/compress_zstd.c	\

  src/common/crypto.c		\

  src/common/crypto_dh.c       \

  src/common/crypto_digest.c     \

  src/common/compat_openssl.h			\

  src/common/compat_threads.h			\

  src/common/compat_time.h			\

  src/common/compress.h				\

  src/common/compress_lzma.h			\

  src/common/compress_none.h			\

  src/common/compress_zlib.h			\

  src/common/compress_zstd.h			\

  src/common/confline.h				\

  src/common/container.h			\

  src/common/crypto.h				\

include src/ext/include.am

include src/lib/err/include.am

include src/lib/ctime/include.am

include src/lib/compress/include.am

include src/common/include.am

include src/trunnel/include.am

include src/or/include.am