* bin/filter: correctly allocate strings when filtering them
Directly reallocate strings when filtering them, because it is very hard for
the caller to know before hand the correct size of the string otherwise. The
patch uses r_str_ APIs to makes this easy.
* remove R_API from functions not used outside of RBin module
* move not-exported functions to a separate private header
* move bin_private in i/private.h
* fix and use R_IPI
* fix mips_assemble
* More code cleanup and bring back bin.reload for the debugger
* Benchmark: swift: 23/9549 rcore: 17232/37147 (2-400x faster)
* For DVIA iOS app this is 1s less
* Demangle all the symbols, not just few
* libr/bin: no need to allocate RBinOptions on the heap
* bin: start using r_return_* around, that's just the beginning
* bin: remove io_owned since it's not used anywhere
* io: make r_io_bind return nothing
* bin: remove unused functions and simplify r_bin_load_io
r_bin_load_io was calling r_bin_load_io2 with UT64_MAX as sz parameter,
but r_bin_load_io2 just returns false if (st64)sz is less than 0, so
that call is actually useless and can be removed.
* bin/bin: fix some preconditions
* bin/open: fix precondition to check for bin and filename too
