Integrator fee management

Global parameter getters

• get_fee_share_divisor()
• get_n_fee_store_tiers()
• get_taker_fee_divisor()
• get_tier_activation_fee()
• get_tier_withdrawal_fee()

Integrator-specific getters

• get_cost_to_upgrade_integrator_fee_store()
• get_integrator_withdrawal_fee()

Integrator fee store management

• upgrade_integrator_fee_store()
• withdraw_integrator_fees()
• upgrade_integrator_fee_store_via_coinstore()
• withdraw_integrator_fees_via_coinstores()