merge two rust projects into one to avoid multiple definition build error for Release

[guocuimi]

[build] /rustc/eb26296b556cef10fb713a38f3d16b9886080f26/library/std/src/personality/gcc.rs:251: multiple definition of `rust_eh_personality'; src/model_loader/safetensors/x86_64-unknown-linux-gnu/release/libsafetensors.a(safetensors-e174e679aecb9d8a.safetensors.b257752cd506e4e1-cgu.7.rcgu.o):/rustc/eb26296b556cef10fb713a38f3d16b9886080f26/library/std/src/personality/gcc.rs:251: first defined here [build] /usr/bin/ld: src/tokenizer/tokenizers/x86_64-unknown-linux-gnu/release/libtokenizers.a(std-7b9f6349d87c69a1.std.edecf719d62c0e6b-cgu.0.rcgu.o):(.init_array.00099+0x0): multiple definition of `std::sys::unix::args::imp::ARGV_INIT_ARRAY'; src/model_loader/safetensors/x86_64-unknown-linux-gnu/release/libsafetensors.a(safetensors-e174e679aecb9d8a.safetensors.b257752cd506e4e1-cgu.7.rcgu.o):(.init_array.00099+0x0): first defined here

[guocuimi]

this is the bug from rust, still no solution yet: rust-lang/rust#44322
mitigated by by changing safetensors from static lib to shared lib. in diff: 5a73f8b