Refactor launch package

[c71n93]

Before adding some functionality to aoi (objectionary/aoi#39, objectionary/aoi#40, objectionary/aoi#41) most of the code needs to be refactored here. First of all launch package need to be refactored.

Here:

ddr/src/main/kotlin/org/objectionary/ddr/launch/Combiner.kt

Lines 43 to 45 in 7a013e8

	private val logger = LoggerFactory.getLogger("org.objectionary.ddr.launch.Combiner")
	private val sep = File.separatorChar
	val documents: MutableMap<Document, String> = mutableMapOf()

global variables are defined. documents variable is modified in functions launch and buildGraph. Then documents is used throughout the program, and also in aoi.

The functions themselves here also do too much, so decomposition is broken. I think this code should be made more object-oriented. @yegor256, @mximp, WDYT?

[mximp]

@c71n93 I agree. Go ahead.

[0pdd]

@c71n93 the puzzle #111 is still not solved.

[0pdd]

@c71n93 the puzzle #113 is still not solved; solved: #111.

[0pdd]

@c71n93 all 2 puzzles are solved here: #111, #113.