Fix BinDisc quantile mistakes (#9)

* Fix BinDisc quantile mistakes

* Fix FImdlp tests

* Fix tests, samples and remove uneeded support files

* Add coypright header to sources
Fix coverage report
Add coverage badge to README

* Update sonar github action

* Move sources to a folder and change ArffFiles files to library

* Add recursive submodules to github action

src/BinDisc.h

@@ -0,0 +1,33 @@
+// ****************************************************************
+// SPDX - FileCopyrightText: Copyright 2024 Ricardo Montañana Gómez
+// SPDX - FileType: SOURCE
+// SPDX - License - Identifier: MIT
+// ****************************************************************
+
+#ifndef BINDISC_H
+#define BINDISC_H
+
+#include "typesFImdlp.h"
+#include "Discretizer.h"
+#include <string>
+
+namespace mdlp {
+    enum class strategy_t {
+        UNIFORM,
+        QUANTILE
+    };
+    class BinDisc : public Discretizer {
+    public:
+        BinDisc(int n_bins = 3, strategy_t strategy = strategy_t::UNIFORM);
+        ~BinDisc();
+        // y is included for compatibility with the Discretizer interface
+        void fit(samples_t& X_, labels_t& y) override;
+        void fit(samples_t& X);
+    private:
+        void fit_uniform(const samples_t&);
+        void fit_quantile(const samples_t&);
+        int n_bins;
+        strategy_t strategy;
+    };
+}
+#endif