* Generate AOT Metadata when targeting C runtime and packed API.

* Also copy metadata.h and metadata_base.h to standalone_crt.

* add support for get_input_index as well as setting up get_input_info as unsupported

* add support for tvm.aot_executor.create in C runtime

* changes in-progress to unit tests

* Include get_c_metadata in emitted function list

* make CRT error codes generic for graph or AoT executor, fix AoT lib link order

* add AoT executor creation and initializaion, as well as support for get_input_index()

* add allocation of inputs, outputs, and pools; add get_input(), but shape encoded in metadata appears to be incorrect;

* add support to test_aot_executor for get_input()

* fix numpy array shape so that get_input() works properly

* implement run(), get_output(), get_num_inputs(), and get_num_outputs(); test_aot_executor() is now passing;

* fix up some issues from rebase with main

* clean up logging and test_graph_executor()

* lint clean-up

* more lint clean-up

* fix i386 build errors

* first set of changes addressing PR feedback

* more PR feedback: device pass-by-value, docstring entries, return variable name

* add mangling of get_c_metadata() name to avoid function name collisions

* only mangle get_c_metadata() when using C runtime

* add static specifier to all kTvmgenMetadata variables to avoid namespace collisions

* use TVM_IS_CPP_RUNTIME preprocessor define to deteremine whether or not to include metadata.h c++ code

* add TVM_IS_CPP_RUNTIME define for cpptest

* add TVM_IS_CPP_RUNTIME to apps/bundle_deploy

* add TVM_IS_CPP_RUNTIME web/Makefile

* update number of expected generated C files for AoT source files

* break out metadata data structures into separate metadata_types.h header to avoid c/c++ issues and remove the need for the TVM_IS_CPP_RUNTIME define

* remove TVM_IS_CPP_RUNTIME from web makefile

* fix metadata.h include-order lint issue

* correct error mask bits

* address PR feedback

* trigger build

* trigger build

* trigger build

* trigger build

* add alternate name for test_graph_executor() too see if it runs in CI

* fix lint

* revert alternate test code

Co-authored-by: Andrew Reusch <areusch@gmail.com>