Upgrade memmap and other dependencies mainly to avoid RUSTSEC-2020-0077

[legokichi]

cargo-audit warn me that memmap 0.7.0 has vulnerability.

• https://rustsec.org/advisories/RUSTSEC-2020-0077

Crate:     memmap
Version:   0.7.0
Warning:   unmaintained
Title:     memmap is unmaintained
Date:      2020-12-02
ID:        RUSTSEC-2020-0077
URL:       https://rustsec.org/advisories/RUSTSEC-2020-0077
Dependency tree:
memmap 0.7.0
└── framebuffer 0.3.1