move styles from bootstrap custom to chill entrypoint. split chillmain with imports sheets. clean styles

src/Bundle/ChillMainBundle/Resources/public/chill/scss/forms.scss

@@ -0,0 +1,39 @@
+/// forms
+form {
+
+    /* avoid useless html in first level of the custom fields row loop in forms
+    * (better should to improve the loop)
+    */
+    & > div.container-fluid {
+        & > div.row > .parent {
+            padding: 0;
+            & div.cf-fields span.cf-title {
+                margin: 1em -15px 0;
+                width: calc(100% + 30px);
+                @include title_in_form;
+            }
+        }
+    }
+
+    fieldset {
+        margin-top: 1em;
+        & > legend {
+            @include title_in_form;
+        }
+    }
+
+    label {
+        display: inline;
+        &.required:after {
+            content: " *";
+            color: $red;
+        }
+    }
+}
+
+.col-form-label {
+    padding-top: .5em;
+    padding-bottom: .5em;
+    font-weight: 700;
+    margin-bottom: .375em;
+}