add EIP for particle gas costs (#2045)
* add EIP for fractional gas costs
* use EIP number 2045, add references, discussion-to
* add EIP-2045 to Istanbul
* Formatting
* Add ewasm to rationale
* Clarify cost reduction examples
* Clarify the increase of particles
* link to eip-2035, edit for clarity
* add reference to eip-2035
* add axic as author
* rename title to "particle gas costs", edit ewasm section
* fix header
GitHub Diff