port sqlcipher to go-sqlite3#622

Open

auxten wants to merge 12 commits intomattn:masterfrom

CovenantSQL:master

Commits on Aug 22, 2018

add cipher related files to develop under Linux
auxten
committed

Commits on Aug 23, 2018

build can work now, need to solve the libcrypto dynamic link problem
auxten
committed
add tomcrypt to project
auxten
committed
add _crypto_key param for sqlcipher
auxten
committed

Commits on Aug 24, 2018

ignore .idea
auxten
committed
update sqlite3-binding.c.diff
auxten
committed
fix simple example, add README
auxten
committed
more readme
auxten
committed

Commits on Aug 30, 2018

Merge pull request #1 from mattn/master
auxten
authored
Revert "more readme"
auxten
committed
Revert "fix simple example, add README"
auxten
committed
add encrypt storage example and some instructions in README
auxten
committed