oss: figure out which open source libraries are prevalent

[mr-tz]

From manual analysis of internal GP database:

• https://github.com/servo/nss/blob/master/lib/pk11wrap/pk11auth.c or similar
  • strings like PK11_Authenticate, PK11_FreeSlot
• aPLib v1.01
• gzip
• golang
• openssl #717
• zlib #741

the following are available on vcpkg:

• nss
• openssl #717
• zlib #741

[williballenthin]

from an existing project using vcpkg:

• cryptopp #732
• curl #733
• detours #734
• jsoncpp #735
• liblzma #736
• mbedtls #737
• openssl #717
• sqlite3 #739
• wolfssl #740
• zlib #741

[williballenthin]

from some existing modeling of malware:

• vtcp
• tor
• aplib
• xz
• libpcap #753
• nacl/sodium #752
• polarssl
• tomcrypt #754
• cpp-httplib
• winpcap
• kcp #751

these are available on vcpkg:

• libpcap #753
• sodium #752
• tomcrypt #754
• cpp-httplib
• winpcap
• kcp #751

[williballenthin]

jemalloc, available on vcpkg #750