Make "complex" a top-level feature as well

Author: aldanor

hdf5/Cargo.toml

@@ -20,7 +20,9 @@ lzf = ["dep:lzf-sys", "dep:errno"]
 blosc = ["dep:blosc-sys"]
 static = ["hdf5-sys/static"]
 zlib = ["hdf5-sys/zlib"]
+complex = ["hdf5-types/complex"]
 f16 = ["hdf5-types/f16"]
+
 # The features with version numbers such as 1.10.3, 1.12.0 are metafeatures
 # and is only available when the HDF5 library is at least this version.
 # Features have_direct and have_parallel are also metafeatures and dependent