This patch adds an annotation for creating name spaces within
capnproto files with the C-language code generator.
Use the annotation like this:
using C = import "/c.capnp";
$C.namespace("sample_namespace_");
The string passed into the namespace annotation is prepended to the
name of all the struct's in the schema file.
Signed-off-by: Curt Brune <curt@enfabrica.net>
schema files.
Some schema files (eg. those that only decalare annotations) do not actually
result in any generated C code. They do not need to have a corresponding
include directive for C files generated from schemas that include them. This
introduces a "donotinclude" annotation that takes the Cap'n Proto ID (a
UInt64) of any such files and skips generating the include directive for them.
