feat: add '--install-deps-path' and '--skip-*' options

[DenKoren]

When playing with bundling complex application, I faced the challenge of patching several different binaries in several paths that need to refer the same 'libs' directory.

The challenge is that one should search for '../../libs', whle other - '../libs'.
The dependencies of binaries intersect, but are not entirely the same. When I patch the first binary, I still need to collect part of libraries for the second. Also, as libraries depend on each other, I need to use some 'stable' import path inside them to not be bound to the executable path.

The patch offers a way to solve the problem:

1. --skip-existing makes dylibbundler to use existing files inside --dest-dir and not patch them, allowing dylibbundler to patch libraries only once when executed for several binaries, adding only missing dependencies.
2. --skip-patching enables dylibbundler to iterate over dependencies and only bundle them into destination directory
3. --skip-missing enables dylibbundler to not fail or request interactive input for dependencies it cannot locate on FS (suitable for CI)
4. --install-deps-path makes dylibbundler to use different paths for install_name_tool when it patches the original file (--fix-file) and its dependencies. The option defaults to --install-path` value so the change is fully backward-compatible with previous logic of the tool.

[DenKoren]

@auriamg , this change is backward-compatible with current version of bundler, as far as I can understand the source code.