[lustresf] work in progress. Added global env with initial values
[stateflow] some progress, linking the parsed json to lustrec engine. Some variables are not yet typed. To investigate ...
json-parser: correct parser for regex for real variables with e|E
json-parser: add test for real variable with e|E
json-parser: correct bug on real variables value
json-parser: add string_of_XXX functions for assertions
json-parser: test exception for variables
json-parser: switch arguments for assert_equal (expected/actual)
json-parser: use JSON_parse_error exception
json-parser: more tests with single variables
json-parser: change variables names in tests
json-parser: add test for boolean variable true
json-parser: refactor first test
json-parser: first unit test for JSON parser (variables)
json-parser: clean packages and _tags.in
json-parser: replace assert with exceptions
json-parser: clean files names and directories