[META] Fuse/Filesystem improvements and bugs

[aschmahmann]

Using as a tracking issue for various fuse/filesystem mount bugs

• https://github.com/ipfs/go-ipfs/issues/3014
• https://github.com/ipfs/go-ipfs/issues/3772
• https://github.com/ipfs/go-ipfs/issues/5003
• https://github.com/ipfs/go-ipfs/issues/4228
• https://github.com/ipfs/go-ipfs/issues/4185
• https://github.com/ipfs/go-ipfs/issues/2712
• https://github.com/ipfs/go-ipfs/issues/2187
• https://github.com/ipfs/go-ipfs/issues/5209
• https://github.com/ipfs/go-ipfs/issues/870
• https://github.com/ipfs/go-ipfs/issues/2166
• https://github.com/ipfs/go-ipfs/issues/2167
• https://github.com/ipfs/go-ipfs/issues/2168

[vorburger]

https://github.com/ipfs/roadmap/issues/90