MCOL-3514 Add support for S3 to cpimport

cpimport now has the ability to use libmarias3 to read an object from an
S3 bucket instead of a file on local disk.

This also moves libmarias3 to utils/libmarias3.

utils/libmarias3/CMakeLists.txt

@@ -0,0 +1,24 @@
+set(S3API_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libmarias3 CACHE INTERNAL "S3API_DIR")
+
+include(ExternalProject)
+ExternalProject_Add(ms3
+    DOWNLOAD_COMMAND cd ${CMAKE_SOURCE_DIR} && git submodule update --init
+    CONFIGURE_COMMAND autoreconf -fi ${S3API_DIR} && ${S3API_DIR}/configure --enable-shared --disable-static --prefix=${CMAKE_BINARY_DIR} ${S3_CONFIGURE_OPT}
+    BUILD_COMMAND make
+    BUILD_IN_SOURCE 0
+    EXCLUDE_FROM_ALL TRUE
+)
+
+add_library(marias3 SHARED IMPORTED)
+set_target_properties(marias3 PROPERTIES IMPORTED_LOCATION ${CMAKE_BINARY_DIR}/lib/libmarias3.so.3.1.2)
+add_dependencies(marias3 ms3)
+
+set(S3API_DEPS marias3 curl xml2 CACHE INTERNAL "S3API_DEPS")
+
+install(PROGRAMS
+    ${CMAKE_BINARY_DIR}/lib/libmarias3.so.3.1.2
+    ${CMAKE_BINARY_DIR}/lib/libmarias3.so.3
+    ${CMAKE_BINARY_DIR}/lib/libmarias3.so
+    DESTINATION ${INSTALL_ENGINE}/lib
+    COMPONENT platform
+)