tools: Add a tool to validate emoji name listing scripts.
tools: Add a tool to validate emoji name listing scripts.

This tools emoji name import/export tooling by verifying that no
information gets modified in a round-trip conversion.

eeshangarg/zulip,rht/zulip,dhcrzf/zulip,zulip/zulip,showell/zulip,zulip/zulip,rishig/zulip,tommyip/zulip,eeshangarg/zulip,punchagan/zulip,rht/zulip,kou/zulip,zulip/zulip,showell/zulip,shubhamdhama/zulip,synicalsyntax/zulip,timabbott/zulip,jackrzhang/zulip,rishig/zulip,jackrzhang/zulip,synicalsyntax/zulip,shubhamdhama/zulip,punchagan/zulip,tommyip/zulip,brainwane/zulip,timabbott/zulip,hackerkid/zulip,eeshangarg/zulip,rishig/zulip,tommyip/zulip,kou/zulip,punchagan/zulip,synicalsyntax/zulip,dhcrzf/zulip,shubhamdhama/zulip,shubhamdhama/zulip,rht/zulip,kou/zulip,brainwane/zulip,eeshangarg/zulip,synicalsyntax/zulip,tommyip/zulip,eeshangarg/zulip,shubhamdhama/zulip,synicalsyntax/zulip,andersk/zulip,rht/zulip,dhcrzf/zulip,jackrzhang/zulip,dhcrzf/zulip,timabbott/zulip,zulip/zulip,showell/zulip,jackrzhang/zulip,shubhamdhama/zulip,punchagan/zulip,punchagan/zulip,andersk/zulip,hackerkid/zulip,synicalsyntax/zulip,timabbott/zulip,zulip/zulip,rishig/zulip,tommyip/zulip,andersk/zulip,showell/zulip,rishig/zulip,brainwane/zulip,hackerkid/zulip,timabbott/zulip,rishig/zulip,hackerkid/zulip,timabbott/zulip,rht/zulip,andersk/zulip,showell/zulip,punchagan/zulip,brainwane/zulip,eeshangarg/zulip,kou/zulip,kou/zulip,shubhamdhama/zulip,brainwane/zulip,dhcrzf/zulip,dhcrzf/zulip,rishig/zulip,kou/zulip,hackerkid/zulip,andersk/zulip,andersk/zulip,rht/zulip,kou/zulip,jackrzhang/zulip,andersk/zulip,jackrzhang/zulip,rht/zulip,tommyip/zulip,tommyip/zulip,dhcrzf/zulip,timabbott/zulip,hackerkid/zulip,zulip/zulip,brainwane/zulip,zulip/zulip,brainwane/zulip,punchagan/zulip,showell/zulip,eeshangarg/zulip,jackrzhang/zulip,showell/zulip,hackerkid/zulip,synicalsyntax/zulip