Fix API for Multi Index

1. no longer need to specify index number
2. no longer need to specify type multiple times
3. clean up unnecessary references
4. remove member variables that are not needed
5. implement store for index
6. implement find iterator for secondary given primary key

change printf to echo for build on mac error message

Change darwin build to use "openssl" instead of "openssl@1.1"

The eosio_build_darwin.sh script clearly executes a "brew install openssl" which gives openssl 1.0 installed to /usr/local/opt/openssl. Change eosio_build.sh to look in that directory since that appears to be the intention.

enable almost all compiler warnings on wasm side, disable all warning…

chain library unit test fix

Eosio build amzn

Make all wasm instances share same linear memory

Contextfree

Have Jenkins run tests

Test script fixes for mac - stat613

added new link to manual dependency install for amazon linux to table of contents, rearranged table of contents in readme.md

Merging master branch to update build files from PR #1394

Add Jenkinsfile, build dependencies with max jobs.