Add rule to remove interpolated strings

[jeparlefrancais]

Closes #92

This new rule replaces interpolated strings with string.format calls. The rule has a strategy property that defines how it converts the interpolated strings.

The default strategy "string" uses the %s string specifier in string.format calls and wrap each interpolated value in a tostring call.

The other available strategy is tostring, which uses the %* string specifier in string.format. This strategy does not need to wrap interpolated values.

Example:

local _ = `{object}`
-- generates:
local _ = tostring(object)

local _ = `Value = {object}`
-- generates:
local _ = string.format("Value = %s", tostring(object))
-- or generates with the `tostring` strategy:
local _ = string.format("Value = %*", object)

Todo:

• [x] add entry to the changelog
• [x] add rule docs

[github-actions[bot]]

Coverage after merging remove-interpolated-str-rule into main will be

87.08%

Coverage Report for Changed Files

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
parser.rs	99.15%	100%	73.33%	99.38%	37, 43, 507–513, 55–59, 66
src/nodes
arguments.rs	86.81%	100%	85.71%	87.14%	130–131, 153–157, 159, 189, 57–59, 87–89
src/nodes/expressions
interpolated_string.rs	81.09%	100%	79.49%	81.55%	136–139, 164–167, 198–201, 203, 231–233, 306–312, 356–361, 386–389, 48–50, 76–79
src/process
scope_visitor.rs	81.70%	100%	76.92%	82.65%	132, 164–167, 180–190, 195, 219–221, 227–229, 249–251, 259–261
src/rules
mod.rs	89.03%	100%	77.78%	90.49%	105–107, 111, 121–123, 141–143, 145, 176–178, 264, 305–306, 341–343, 406–408, 66
remove_interpolated_string.rs	90.59%	100%	79.17%	92.13%	13, 211–218