update file mod for particles, sprite_collision, tilemap build.sh files

Merge pull request #11 from playdate-go/a_tour_of_go_issue_10

A Tour Of Go - Issue 10

 add ARM unwind/libc stubs to pd_cgo.c — TinyGo links

  libgcc when error interface is used as return type, which
  references OS symbols (__exidx_start/end, _exit, _kill,
  _getpid) that don't exist on bare-metal Playdate

remove non existing files from the tinygo pathes list in install.sh

Mark 'Networking' code example task in Roadmap as completed

v0.7.1 Fixed player movement for Sprite Collisions code example.

Added accessors functions for Sprite, Collision and QueryInfo subsystems

Release version 0.7.0

Release version 0.6.0

Release version 0.5.0. Rewrite official 'Tilemap' code example from C…

… to Golang.

Updated README.md according to changes.
Implemented Tilemap API

Implemented high and low level JSON encoding and decoding. Added Go p…

…anic/recover workaround to make it works on device