Moving to node_modules folder to make easier to upgrade

trying to move from Bootstrap 3 to Bootstrap 5

node_modules/mux.js/lib/utils/clock.js

@@ -0,0 +1,58 @@
+/**
+ * mux.js
+ *
+ * Copyright (c) Brightcove
+ * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+ */
+var
+  ONE_SECOND_IN_TS = 90000, // 90kHz clock
+  secondsToVideoTs,
+  secondsToAudioTs,
+  videoTsToSeconds,
+  audioTsToSeconds,
+  audioTsToVideoTs,
+  videoTsToAudioTs,
+  metadataTsToSeconds;
+
+secondsToVideoTs = function(seconds) {
+  return seconds * ONE_SECOND_IN_TS;
+};
+
+secondsToAudioTs = function(seconds, sampleRate) {
+  return seconds * sampleRate;
+};
+
+videoTsToSeconds = function(timestamp) {
+  return timestamp / ONE_SECOND_IN_TS;
+};
+
+audioTsToSeconds = function(timestamp, sampleRate) {
+  return timestamp / sampleRate;
+};
+
+audioTsToVideoTs = function(timestamp, sampleRate) {
+  return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+};
+
+videoTsToAudioTs = function(timestamp, sampleRate) {
+  return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+};
+
+/**
+ * Adjust ID3 tag or caption timing information by the timeline pts values
+ * (if keepOriginalTimestamps is false) and convert to seconds
+ */
+metadataTsToSeconds = function(timestamp, timelineStartPts, keepOriginalTimestamps) {
+  return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
+};
+
+module.exports = {
+  ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,
+  secondsToVideoTs: secondsToVideoTs,
+  secondsToAudioTs: secondsToAudioTs,
+  videoTsToSeconds: videoTsToSeconds,
+  audioTsToSeconds: audioTsToSeconds,
+  audioTsToVideoTs: audioTsToVideoTs,
+  videoTsToAudioTs: videoTsToAudioTs,
+  metadataTsToSeconds: metadataTsToSeconds
+};