CLSA-2022-1654804240 Fixed CVEs in vim: CVE-2022-1851, CVE-2022-1898, CVE-2022-1886, CVE-2022-0319

CVE-2022-0319: correct end of Visual area when entering another buffer - CVE-2022-1851: fix invalid cursor position after text formatting - CVE-2022-1886: fix access before start of text with a put command - CVE-2022-1898: fix using freed memory with 'd'...