Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
9	0	EP	call site: 00000	rnp_input_from_memory

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           rnp_input_from_memory

[call site] 00001


           rnp_output_to_null

[call site] 00002


           rnp_dump_packets_to_output

[call site] 00003


           rnp_output_destroy

[call site] 00004


           rnp_input_destroy

[call site] 00005


           rnp_input_from_memory

[call site] 00006


           rnp_dump_packets_to_json

[call site] 00007


           rnp_buffer_destroy

[call site] 00008


           rnp_input_destroy

[call site] 00009