Increase statemine balance

[NachoPal]

Fixes: #807

[apopiak]

needs formatting

[apopiak]

We should probably do the same for Statemint and Westmint?

[NachoPal]

Thanks for the formatting @chevdor

We should probably do the same for Statemint and Westmint?

Westmint & Statemint don't need it, the balance depends on the ED.

Statemine -> pub const EXISTENTIAL_DEPOSIT: Balance = CENTS / 10;
Statemint -> pub const EXISTENTIAL_DEPOSIT: Balance = 10 * CENTS;
Westmint -> pub const EXISTENTIAL_DEPOSIT: Balance = 100 * MILLICENTS;