Upstream changes

[mat-hek]

To upstream:

• Implement code:get_object_code/1 #143 @FKubisSWM
• Implement code:which/1 #127 @FKubisSWM
• Add erlang:bump_reductions function #97 @FKubisSWM
• Add file:native_name_encoding/0 #93 @mat-hek
• Changes in the emscripten platform @jgonet - Important, wasm currently doesn't work on downstreamed AtomVM
• node/1 BIF @mat-hek
• Parsing 64-bit numbers @bblaszkow06 (unless we wait for bigint - ask Davide how long)
• binary:split @FKubisSWM
• Add support for os_type/otp_release for erlang:system_info #92 @mat-hek
• DEBUG_GC @mat-hek
• TERM_DEBUG_ASSERT @mat-hek
• ADVANCED_TRACING @mat-hek
• ETS @jgonet